Merge branch 'develop' of github.com:MultiMC/MultiMC5 into feature_news

Conflicts:
	CMakeLists.txt
	gui/MainWindow.h

154 files changed, 4676 insertions, 2154 deletions

diff --git a/.gitignore b/.gitignore
index a58d38f3..54bd5039 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,5 @@ tags
 # YouCompleteMe config stuff.
 .ycm_extra_conf.*
 
+#OSX Stuff
+.DS_Store
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f2cfc3ae..9ccd513d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,11 +43,20 @@ ENDIF()
 ######## 3rd Party Libs ########
 
 # Find the required Qt parts
+find_package(Qt5Core REQUIRED)
 find_package(Qt5Widgets REQUIRED)
 find_package(Qt5Network REQUIRED)
+find_package(Qt5Test REQUIRED)
+find_package(Qt5Concurrent REQUIRED)
 find_package(Qt5LinguistTools REQUIRED)
 
-include_directories(${Qt5Widgets_INCLUDE_DIRS})
+include_directories(
+	${Qt5Core_INCLUDE_DIRS}
+	${Qt5Widgets_INCLUDE_DIRS}
+	${Qt5Concurrent_INCLUDE_DIRS}
+	${Qt5Network_INCLUDE_DIRS}
+	${Qt5Test_INCLUDE_DIRS}
+  )
 
 # The Qt5 cmake files don't provide its install paths, so ask qmake.
 get_target_property(QMAKE_EXECUTABLE Qt5::qmake LOCATION)
@@ -360,16 +369,22 @@ logic/OpSys.h
 logic/OpSys.cpp
 logic/ForgeInstaller.h
 logic/ForgeInstaller.cpp
+logic/LiteLoaderInstaller.h
+logic/LiteLoaderInstaller.cpp
 
 # Nostalgia
 logic/NostalgiaInstance.h
 logic/NostalgiaInstance.cpp
 
+# FTB
+logic/OneSixFTBInstance.h
+logic/OneSixFTBInstance.cpp
+logic/LegacyFTBInstance.h
+logic/LegacyFTBInstance.cpp
+
 # Lists
 logic/lists/InstanceList.h
 logic/lists/InstanceList.cpp
-logic/lists/IconList.h
-logic/lists/IconList.cpp
 logic/lists/BaseVersionList.h
 logic/lists/BaseVersionList.cpp
 logic/lists/MinecraftVersionList.h
@@ -381,6 +396,13 @@ logic/lists/ForgeVersionList.cpp
 logic/lists/JavaVersionList.h
 logic/lists/JavaVersionList.cpp
 
+# Icons
+logic/icons/MMCIcon.h
+logic/icons/MMCIcon.cpp
+logic/icons/IconList.h
+logic/icons/IconList.cpp
+
+
 # misc model/view
 logic/EnabledItemFilter.h
 logic/EnabledItemFilter.cpp
@@ -389,6 +411,10 @@ logic/EnabledItemFilter.cpp
 logic/tasks/ProgressProvider.h
 logic/tasks/Task.h
 logic/tasks/Task.cpp
+logic/tasks/ThreadTask.h
+logic/tasks/ThreadTask.cpp
+logic/tasks/SequentialTask.h
+logic/tasks/SequentialTask.cpp
 
 # Utilities
 logic/JavaChecker.h
@@ -403,6 +429,8 @@ logic/JavaCheckerJob.h
 logic/JavaCheckerJob.cpp
 
 # Assets
+logic/assets/AssetsMigrateTask.h
+logic/assets/AssetsMigrateTask.cpp
 logic/assets/AssetsUtils.h
 logic/assets/AssetsUtils.cpp
 )
@@ -499,8 +527,8 @@ ADD_EXECUTABLE(MultiMC MACOSX_BUNDLE WIN32 main.cpp ${MULTIMC_RCS})
 # Link
 TARGET_LINK_LIBRARIES(MultiMC MultiMC_common)
 TARGET_LINK_LIBRARIES(MultiMC_common xz-embedded unpack200 quazip libUtil libSettings libGroupView ${MultiMC_LINK_ADDITIONAL_LIBS})
-QT5_USE_MODULES(MultiMC Core Widgets Network Xml WebKit ${MultiMC_QT_ADDITIONAL_MODULES})
-QT5_USE_MODULES(MultiMC_common Core Widgets Network Xml WebKit ${MultiMC_QT_ADDITIONAL_MODULES})
+QT5_USE_MODULES(MultiMC Core Widgets Network Xml WebKit Concurrent ${MultiMC_QT_ADDITIONAL_MODULES})
+QT5_USE_MODULES(MultiMC_common Core Widgets Network Xml WebKit Concurrent ${MultiMC_QT_ADDITIONAL_MODULES})
 ADD_DEPENDENCIES(MultiMC_common MultiMCLauncher JavaCheck)
 
 ################################ INSTALLATION AND PACKAGING ################################
@@ -514,9 +542,12 @@ IF(UNIX AND APPLE)
 
 	SET(MACOSX_BUNDLE_BUNDLE_NAME "MultiMC")
 	SET(MACOSX_BUNDLE_INFO_STRING "MultiMC Minecraft launcher and management utility.")
+	SET(MACOSX_BUNDLE_GUI_IDENTIFIER "org.multimc.MultiMC5")
 	SET(MACOSX_BUNDLE_BUNDLE_VERSION "${MultiMC_VERSION_MAJOR}.${MultiMC_VERSION_MINOR}.${MultiMC_VERSION_REV}.${MultiMC_VERSION_BUILD}")
-	#SET(MACOSX_BUNDLE_GUI_IDENTIFIER "")
+	SET(MACOSX_BUNDLE_SHORT_VERSION_STRING "${MultiMC_VERSION_MAJOR}.${MultiMC_VERSION_MINOR}.${MultiMC_VERSION_REV}.${MultiMC_VERSION_BUILD}")
+	SET(MACOSX_BUNDLE_LONG_VERSION_STRING "${MultiMC_VERSION_MAJOR}.${MultiMC_VERSION_MINOR}.${MultiMC_VERSION_REV}.${MultiMC_VERSION_BUILD}")
 	SET(MACOSX_BUNDLE_ICON_FILE MultiMC.icns)
+	SET(MACOSX_BUNDLE_COPYRIGHT "Copyright 2013 MultiMC Contributors")
 ELSEIF(UNIX)
 	SET(PLUGIN_DEST_DIR plugins)
 	SET(QTCONF_DEST_DIR .)
@@ -592,6 +623,18 @@ INSTALL(
 	REGEX "d\\." EXCLUDE
 	REGEX "_debug\\." EXCLUDE
 )
+IF(APPLE)
+	# Accessible plugin to make buttons look decent on osx
+	INSTALL(
+		DIRECTORY "${QT_PLUGINS_DIR}/accessible"
+		DESTINATION ${PLUGIN_DEST_DIR}
+		COMPONENT Runtime
+		REGEX "quick" EXCLUDE
+		REGEX "d\\." EXCLUDE
+		REGEX "_debug\\." EXCLUDE
+	)
+ENDIF()
+
 endif()
 
 # qtconf
@@ -658,8 +701,12 @@ ELSE()
 ENDIF()
 
 add_custom_target (translations DEPENDS ${QM_FILES})
+IF(APPLE AND UNIX) ## OSX
+	install(FILES ${QM_FILES} DESTINATION MultiMC.app/Contents/MacOS/translations)
+ELSE()
+	install(FILES ${QM_FILES} DESTINATION translations)
+ENDIF()
 
-install(FILES ${QM_FILES} DESTINATION ${CMAKE_INSTALL_PREFIX}/translations)
 
 # Tests
 add_subdirectory(tests)
diff --git a/MultiMC.cpp b/MultiMC.cpp
index 12c37d2a..4e06f558 100644
--- a/MultiMC.cpp
+++ b/MultiMC.cpp
@@ -8,11 +8,12 @@
 #include <QLibraryInfo>
 #include <QMessageBox>
 #include <QStringList>
+#include <QDesktopServices>
 
 #include "gui/dialogs/VersionSelectDialog.h"
 #include "logic/lists/InstanceList.h"
 #include "logic/auth/MojangAccountList.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 #include "logic/lists/LwjglVersionList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/lists/ForgeVersionList.h"
@@ -34,16 +35,28 @@
 #include <logger/QsLogDest.h>
 
 #include "config.h"
+#ifdef WINDOWS
+#define UPDATER_BIN "updater.exe"
+#elif LINUX
+#define UPDATER_BIN "updater"
+#elif OSX
+#define UPDATER_BIN "updater"
+#else
+#error Unsupported operating system.
+#endif
+
 using namespace Util::Commandline;
 
-MultiMC::MultiMC(int &argc, char **argv, const QString &root) : QApplication(argc, argv),
-	m_version{VERSION_MAJOR, VERSION_MINOR, VERSION_BUILD, VERSION_CHANNEL, VERSION_BUILD_TYPE}
+MultiMC::MultiMC(int &argc, char **argv, const QString &root)
+	: QApplication(argc, argv), m_version{VERSION_MAJOR,   VERSION_MINOR,	 VERSION_BUILD,
+										  VERSION_CHANNEL, VERSION_BUILD_TYPE}
 {
 	setOrganizationName("MultiMC");
 	setApplicationName("MultiMC5");
 
 	initTranslations();
 
+	setAttribute(Qt::AA_UseHighDpiPixmaps);
 	// Don't quit on hiding the last window
 	this->setQuitOnLastWindowClosed(false);
 
@@ -137,9 +150,10 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &root) : QApplication(arg
 	}
 
 	// change directory
-	QDir::setCurrent(args["dir"].toString().isEmpty() ?
-				(root.isEmpty() ? QDir::currentPath() : QDir::current().absoluteFilePath(root))
-			  : args["dir"].toString());
+	QDir::setCurrent(
+		args["dir"].toString().isEmpty()
+			? (root.isEmpty() ? QDir::currentPath() : QDir::current().absoluteFilePath(root))
+			: args["dir"].toString());
 
 	// init the logger
 	initLogger();
@@ -158,7 +172,7 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &root) : QApplication(arg
 	m_instances.reset(new InstanceList(InstDirSetting->get().toString(), this));
 	QLOG_INFO() << "Loading Instances...";
 	m_instances->loadList();
-	connect(InstDirSetting, SIGNAL(settingChanged(const Setting &, QVariant)),
+	connect(InstDirSetting.get(), SIGNAL(settingChanged(const Setting &, QVariant)),
 			m_instances.get(), SLOT(on_InstFolderChanged(const Setting &, QVariant)));
 
 	// and accounts
@@ -179,42 +193,43 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &root) : QApplication(arg
 	{
 		QLOG_INFO() << "No proxy found.";
 	}
-	else for (auto proxy : proxies)
-	{
-		QString proxyDesc;
-		if (proxy.type() == QNetworkProxy::NoProxy)
-		{
-			QLOG_INFO() << "Using no proxy is an option!";
-			continue;
-		}
-		switch (proxy.type())
+	else
+		for (auto proxy : proxies)
 		{
-		case QNetworkProxy::DefaultProxy:
-			proxyDesc = "Default proxy: ";
-			break;
-		case QNetworkProxy::Socks5Proxy:
-			proxyDesc = "Socks5 proxy: ";
-			break;
-		case QNetworkProxy::HttpProxy:
-			proxyDesc = "HTTP proxy: ";
-			break;
-		case QNetworkProxy::HttpCachingProxy:
-			proxyDesc = "HTTP caching: ";
-			break;
-		case QNetworkProxy::FtpCachingProxy:
-			proxyDesc = "FTP caching: ";
-			break;
-		default:
-			proxyDesc = "DERP proxy: ";
-			break;
+			QString proxyDesc;
+			if (proxy.type() == QNetworkProxy::NoProxy)
+			{
+				QLOG_INFO() << "Using no proxy is an option!";
+				continue;
+			}
+			switch (proxy.type())
+			{
+			case QNetworkProxy::DefaultProxy:
+				proxyDesc = "Default proxy: ";
+				break;
+			case QNetworkProxy::Socks5Proxy:
+				proxyDesc = "Socks5 proxy: ";
+				break;
+			case QNetworkProxy::HttpProxy:
+				proxyDesc = "HTTP proxy: ";
+				break;
+			case QNetworkProxy::HttpCachingProxy:
+				proxyDesc = "HTTP caching: ";
+				break;
+			case QNetworkProxy::FtpCachingProxy:
+				proxyDesc = "FTP caching: ";
+				break;
+			default:
+				proxyDesc = "DERP proxy: ";
+				break;
+			}
+			proxyDesc += QString("%3@%1:%2 pass %4")
+							 .arg(proxy.hostName())
+							 .arg(proxy.port())
+							 .arg(proxy.user())
+							 .arg(proxy.password());
+			QLOG_INFO() << proxyDesc;
 		}
-		proxyDesc += QString("%3@%1:%2 pass %4")
-						 .arg(proxy.hostName())
-						 .arg(proxy.port())
-						 .arg(proxy.user())
-						 .arg(proxy.password());
-		QLOG_INFO() << proxyDesc;
-	}
 
 	// create the global network manager
 	m_qnam.reset(new QNetworkAccessManager(this));
@@ -285,13 +300,26 @@ void MultiMC::initTranslations()
 	}
 }
 
+void moveFile(const QString &oldName, const QString &newName)
+{
+	QFile::remove(newName);
+	QFile::copy(oldName, newName);
+	QFile::remove(oldName);
+}
 void MultiMC::initLogger()
 {
+	static const QString logBase = "MultiMC-%0.log";
+
+	moveFile(logBase.arg(3), logBase.arg(4));
+	moveFile(logBase.arg(2), logBase.arg(3));
+	moveFile(logBase.arg(1), logBase.arg(2));
+	moveFile(logBase.arg(0), logBase.arg(1));
+
 	// init the logging mechanism
 	QsLogging::Logger &logger = QsLogging::Logger::instance();
 	logger.setLoggingLevel(QsLogging::TraceLevel);
-	m_fileDestination = QsLogging::DestinationFactory::MakeFileDestination("MultiMC.log");
-	m_debugDestination = QsLogging::DestinationFactory::MakeDebugOutputDestination();
+	m_fileDestination = QsLogging::DestinationFactory::MakeFileDestination(logBase.arg(0));
+	m_debugDestination = QsLogging::DestinationFactory::MakeQDebugDestination();
 	logger.addDestination(m_fileDestination.get());
 	logger.addDestination(m_debugDestination.get());
 	// log all the things
@@ -302,67 +330,110 @@ void MultiMC::initGlobalSettings()
 {
 	m_settings.reset(new INISettingsObject("multimc.cfg", this));
 	// Updates
-	m_settings->registerSetting(new Setting("UseDevBuilds", false));
-	m_settings->registerSetting(new Setting("AutoUpdate", true));
+	m_settings->registerSetting("UseDevBuilds", false);
+	m_settings->registerSetting("AutoUpdate", true);
+
+	// FTB
+	m_settings->registerSetting("TrackFTBInstances", false);
+#ifdef Q_OS_LINUX
+	QString ftbDefault = QDir::home().absoluteFilePath(".ftblauncher");
+#elif defined(Q_OS_WIN32)
+	QString ftbDefault = PathCombine(QDir::homePath(), "AppData/Roaming/ftblauncher");
+#elif defined(Q_OS_MAC)
+	QString ftbDefault =
+		PathCombine(QDir::homePath(), "Library/Application Support/ftblauncher");
+#endif
+	m_settings->registerSetting("FTBLauncherRoot", ftbDefault);
+
+	m_settings->registerSetting("FTBRoot");
+	if (m_settings->get("FTBRoot").isNull())
+	{
+		QString ftbRoot;
+		QFile f(QDir(m_settings->get("FTBLauncherRoot").toString())
+					.absoluteFilePath("ftblaunch.cfg"));
+		QLOG_INFO() << "Attempting to read" << f.fileName();
+		if (f.open(QFile::ReadOnly))
+		{
+			const QString data = QString::fromLatin1(f.readAll());
+			QRegularExpression exp("installPath=(.*)");
+			ftbRoot = QDir::cleanPath(exp.match(data).captured(1));
+#ifdef Q_OS_WIN32
+			if (!ftbRoot.isEmpty())
+			{
+				if (ftbRoot.at(0).isLetter() && ftbRoot.size() > 1 && ftbRoot.at(1) == '/')
+				{
+					ftbRoot.remove(1, 1);
+				}
+			}
+#endif
+			if (ftbRoot.isEmpty())
+			{
+				QLOG_INFO() << "Failed to get FTB root path";
+			}
+			else
+			{
+				QLOG_INFO() << "FTB is installed at" << ftbRoot;
+				m_settings->set("FTBRoot", ftbRoot);
+			}
+		}
+		else
+		{
+			QLOG_WARN() << "Couldn't open" << f.fileName() << ":" << f.errorString();
+			QLOG_WARN() << "This is perfectly normal if you don't have FTB installed";
+		}
+	}
 
 	// Folders
-	m_settings->registerSetting(new Setting("InstanceDir", "instances"));
-	m_settings->registerSetting(new Setting("CentralModsDir", "mods"));
-	m_settings->registerSetting(new Setting("LWJGLDir", "lwjgl"));
+	m_settings->registerSetting("InstanceDir", "instances");
+	m_settings->registerSetting({"CentralModsDir", "ModsDir"}, "mods");
+	m_settings->registerSetting({"LWJGLDir", "LwjglDir"}, "lwjgl");
+	m_settings->registerSetting("IconsDir", "icons");
+
+	// Editors
+	m_settings->registerSetting("JsonEditor", QString());
 
 	// Console
-	m_settings->registerSetting(new Setting("ShowConsole", true));
-	m_settings->registerSetting(new Setting("AutoCloseConsole", true));
+	m_settings->registerSetting("ShowConsole", true);
+	m_settings->registerSetting("AutoCloseConsole", true);
 
 	// Console Colors
-	//	m_settings->registerSetting(new Setting("SysMessageColor", QColor(Qt::blue)));
-	//	m_settings->registerSetting(new Setting("StdOutColor", QColor(Qt::black)));
-	//	m_settings->registerSetting(new Setting("StdErrColor", QColor(Qt::red)));
+	//	m_settings->registerSetting("SysMessageColor", QColor(Qt::blue));
+	//	m_settings->registerSetting("StdOutColor", QColor(Qt::black));
+	//	m_settings->registerSetting("StdErrColor", QColor(Qt::red));
 
 	// Window Size
-	m_settings->registerSetting(new Setting("LaunchMaximized", false));
-	m_settings->registerSetting(new Setting("MinecraftWinWidth", 854));
-	m_settings->registerSetting(new Setting("MinecraftWinHeight", 480));
-
-	// Auto login
-	m_settings->registerSetting(new Setting("AutoLogin", false));
+	m_settings->registerSetting({"LaunchMaximized", "MCWindowMaximize"}, false);
+	m_settings->registerSetting({"MinecraftWinWidth", "MCWindowWidth"}, 854);
+	m_settings->registerSetting({"MinecraftWinHeight", "MCWindowHeight"}, 480);
 
 	// Memory
-	m_settings->registerSetting(new Setting("MinMemAlloc", 512));
-	m_settings->registerSetting(new Setting("MaxMemAlloc", 1024));
-	m_settings->registerSetting(new Setting("PermGen", 64));
+	m_settings->registerSetting({"MinMemAlloc", "MinMemoryAlloc"}, 512);
+	m_settings->registerSetting({"MaxMemAlloc", "MaxMemoryAlloc"}, 1024);
+	m_settings->registerSetting("PermGen", 64);
 
 	// Java Settings
-	m_settings->registerSetting(new Setting("JavaPath", ""));
-	m_settings->registerSetting(new Setting("LastHostname", ""));
-	m_settings->registerSetting(new Setting("JvmArgs", ""));
+	m_settings->registerSetting("JavaPath", "");
+	m_settings->registerSetting("LastHostname", "");
+	m_settings->registerSetting("JvmArgs", "");
 
 	// Custom Commands
-	m_settings->registerSetting(new Setting("PreLaunchCommand", ""));
-	m_settings->registerSetting(new Setting("PostExitCommand", ""));
+	m_settings->registerSetting({"PreLaunchCommand", "PreLaunchCmd"}, "");
+	m_settings->registerSetting({"PostExitCommand", "PostExitCmd"}, "");
 
 	// The cat
-	m_settings->registerSetting(new Setting("TheCat", false));
-
+	m_settings->registerSetting("TheCat", false);
 
-	m_settings->registerSetting(new Setting("InstSortMode", "Name"));
-	m_settings->registerSetting(new Setting("SelectedInstance", QString()));
-
-	// Persistent value for the client ID
-	m_settings->registerSetting(new Setting("YggdrasilClientToken", ""));
-	QString currentYggID = m_settings->get("YggdrasilClientToken").toString();
-	if (currentYggID.isEmpty())
-	{
-		QUuid uuid = QUuid::createUuid();
-		m_settings->set("YggdrasilClientToken", uuid.toString());
-	}
+	m_settings->registerSetting("InstSortMode", "Name");
+	m_settings->registerSetting("SelectedInstance", QString());
 
 	// Window state and geometry
-	m_settings->registerSetting(new Setting("MainWindowState", ""));
-	m_settings->registerSetting(new Setting("MainWindowGeometry", ""));
+	m_settings->registerSetting("MainWindowState", "");
+	m_settings->registerSetting("MainWindowGeometry", "");
+
+	m_settings->registerSetting("ConsoleWindowState", "");
+	m_settings->registerSetting("ConsoleWindowGeometry", "");
 
-	m_settings->registerSetting(new Setting("ConsoleWindowState", ""));
-	m_settings->registerSetting(new Setting("ConsoleWindowGeometry", ""));
+	m_settings->registerSetting("SettingsGeometry", "");
 }
 
 void MultiMC::initHttpMetaCache()
@@ -374,6 +445,7 @@ void MultiMC::initHttpMetaCache()
 	m_metacache->addBase("libraries", QDir("libraries").absolutePath());
 	m_metacache->addBase("minecraftforge", QDir("mods/minecraftforge").absolutePath());
 	m_metacache->addBase("skins", QDir("accounts/skins").absolutePath());
+	m_metacache->addBase("root", QDir(".").absolutePath());
 	m_metacache->Load();
 }
 
@@ -422,27 +494,20 @@ std::shared_ptr<JavaVersionList> MultiMC::javalist()
 	return m_javalist;
 }
 
-#ifdef WINDOWS
-#define UPDATER_BIN "updater.exe"
-#elif LINUX
-#define UPDATER_BIN "updater"
-#elif OSX
-#define UPDATER_BIN "updater"
-#else
-#error Unsupported operating system.
-#endif
-
-void MultiMC::installUpdates(const QString& updateFilesDir, bool restartOnFinish)
+void MultiMC::installUpdates(const QString &updateFilesDir, bool restartOnFinish)
 {
 	QLOG_INFO() << "Installing updates.";
 #if LINUX
-	// On Linux, the MultiMC executable file is actually in the bin folder inside the installation directory.
+	// On Linux, the MultiMC executable file is actually in the bin folder inside the
+	// installation directory.
 	// This means that MultiMC's *actual* install path is the parent folder.
-	// We need to tell the updater to run with this directory as the install path, rather than the bin folder where the executable is.
+	// We need to tell the updater to run with this directory as the install path, rather than
+	// the bin folder where the executable is.
 	// On other operating systems, we'll just use the path to the executable.
 	QString appDir = QFileInfo(MMC->applicationDirPath()).dir().path();
 
-	// On Linux, we also need to set the finish command to the launch script, rather than the binary.
+	// On Linux, we also need to set the finish command to the launch script, rather than the
+	// binary.
 	QString finishCmd = PathCombine(appDir, "MultiMC");
 #else
 	QString appDir = MMC->applicationDirPath();
@@ -450,28 +515,35 @@ void MultiMC::installUpdates(const QString& updateFilesDir, bool restartOnFinish
 #endif
 
 	// Build the command we'll use to run the updater.
-	// Note, the above comment about the app dir path on Linux is irrelevant here because the updater binary is always in the
+	// Note, the above comment about the app dir path on Linux is irrelevant here because the
+	// updater binary is always in the
 	// same folder as the main binary.
 	QString updaterBinary = PathCombine(MMC->applicationDirPath(), UPDATER_BIN);
 	QStringList args;
-	// ./updater --install-dir $INSTALL_DIR --package-dir $UPDATEFILES_DIR --script $UPDATEFILES_DIR/file_list.xml --wait $PID --mode main
+	// ./updater --install-dir $INSTALL_DIR --package-dir $UPDATEFILES_DIR --script
+	// $UPDATEFILES_DIR/file_list.xml --wait $PID --mode main
 	args << "--install-dir" << appDir;
 	args << "--package-dir" << updateFilesDir;
-	args << "--script"      << PathCombine(updateFilesDir, "file_list.xml");
-	args << "--wait"        << QString::number(MMC->applicationPid());
+	args << "--script" << PathCombine(updateFilesDir, "file_list.xml");
+	args << "--wait" << QString::number(MMC->applicationPid());
 
 	if (restartOnFinish)
-		args << "--finish-cmd"  << finishCmd;
+		args << "--finish-cmd" << finishCmd;
 
 	QLOG_INFO() << "Running updater with command" << updaterBinary << args.join(" ");
+	QFile::setPermissions(updaterBinary, (QFileDevice::Permission)0x7755);
 
-	QProcess::startDetached(updaterBinary, args);
+	if (!QProcess::startDetached(updaterBinary, args))
+	{
+		QLOG_ERROR() << "Failed to start the updater process!";
+		return;
+	}
 
 	// Now that we've started the updater, quit MultiMC.
 	MMC->quit();
 }
 
-void MultiMC::setUpdateOnExit(const QString& updateFilesDir)
+void MultiMC::setUpdateOnExit(const QString &updateFilesDir)
 {
 	m_updateOnExitPath = updateFilesDir;
 }
@@ -481,5 +553,18 @@ QString MultiMC::getExitUpdatePath() const
 	return m_updateOnExitPath;
 }
 
+bool MultiMC::openJsonEditor(const QString &filename)
+{
+	const QString file = QDir::current().absoluteFilePath(filename);
+	if (m_settings->get("JsonEditor").toString().isEmpty())
+	{
+		return QDesktopServices::openUrl(QUrl::fromLocalFile(file));
+	}
+	else
+	{
+		return QProcess::startDetached(m_settings->get("JsonEditor").toString(), QStringList()
+																					 << file);
+	}
+}
 
 #include "MultiMC.moc"
diff --git a/MultiMC.h b/MultiMC.h
index 775189b1..9ad276ff 100644
--- a/MultiMC.h
+++ b/MultiMC.h
@@ -6,7 +6,6 @@
 #include "logger/QsLog.h"
 #include "logger/QsLogDest.h"
 
-
 class MinecraftVersionList;
 class LWJGLVersionList;
 class HttpMetaCache;
@@ -107,12 +106,12 @@ public:
 	/*!
 	 * Installs update from the given update files directory.
 	 */
-	void installUpdates(const QString& updateFilesDir, bool restartOnFinish=false);
+	void installUpdates(const QString &updateFilesDir, bool restartOnFinish = false);
 
 	/*!
 	 * Sets MultiMC to install updates from the given directory when it exits.
 	 */
-	void setUpdateOnExit(const QString& updateFilesDir);
+	void setUpdateOnExit(const QString &updateFilesDir);
 
 	/*!
 	 * Gets the path to install updates from on exit.
@@ -120,6 +119,12 @@ public:
 	 */
 	QString getExitUpdatePath() const;
 
+	/*!
+	 * Opens a json file using either a system default editor, or, if note empty, the editor
+	 * specified in the settings
+	 */
+	bool openJsonEditor(const QString &filename);
+
 private:
 	void initLogger();
 
@@ -130,6 +135,9 @@ private:
 	void initTranslations();
 
 private:
+	friend class UpdateCheckerTest;
+	friend class DownloadUpdateTaskTest;
+
 	std::shared_ptr<QTranslator> m_qt_translator;
 	std::shared_ptr<QTranslator> m_mmc_translator;
 	std::shared_ptr<SettingsObject> m_settings;
diff --git a/MultiMC.manifest b/MultiMC.manifest
new file mode 100644
index 00000000..3acf8f7f
--- /dev/null
+++ b/MultiMC.manifest
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <assemblyIdentity name="MultiMC.Application.5" type="win32" version="5.0.0.0" />
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*"/>
+    </dependentAssembly>
+  </dependency>
+  <description>Custom Minecraft launcher for managing multiple installs.</description>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!--The ID below indicates app support for Windows Vista -->
+      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+      <!--The ID below indicates app support for Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+      <!--The ID below indicates app support for Windows Developer Preview / Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+    </application> 
+  </compatibility>
+</assembly>
\ No newline at end of file
diff --git a/README.md b/README.md
index 456f85e9..227f0731 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,16 @@ Check [BUILD.md](BUILD.md) for build instructions.
 ## Contributing
 The repository is currently managed by @peterix and @drayshak - we're the ones likely to review pull requests. If you'd like to contribute to the project please talk to us on IRC (Esper/#MultiMC) first! This helps us organise ideas and keep in contact with you, and we're unlikely to accept anything blindly.
 
+We use [Clang Format](http://clang.llvm.org/docs/ClangFormat.html) to format the project. We highly recommend setting it up so the project stays well formatted, but there are issues with it on Windows. If you have trouble setting it up, check [.clang-format](.clang-format) manually. We don't accept pull requests with poor formatting. If you have questions, talk to us on IRC (Esper/#MultiMC) _before_ submitting a pull request.
+
+## Forking/Redistributing
+We keep MultiMC open source because we think it's important to be able to see the source code for a project like this, and we do so using the Apache license.
+
+Part of the reason for using the Apache license is we don't want people using the "MultiMC" name when redistributing the project. This means people must take the time to go through the source code and remove all references to "MultiMC", including but not limited to the project icon and the title of windows, (no *MultiMC-fork* in the title).
+
+Apache covers reasonable use for the name - a mention of the project's origins in the About dialog and the license is acceptable. However, it should be abundantly clear that the project is a fork *without* implying that you have our blessing.
+
+
 ## License
 Copyright &copy; 2013 MultiMC Contributors
 
diff --git a/cmake/MacOSXBundleInfo.plist.in b/cmake/MacOSXBundleInfo.plist.in
new file mode 100644
index 00000000..809fab00
--- /dev/null
+++ b/cmake/MacOSXBundleInfo.plist.in
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>NSHighResolutionCapable</key>
+	<string>True</string>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${MACOSX_BUNDLE_EXECUTABLE_NAME}</string>
+	<key>CFBundleGetInfoString</key>
+	<string>${MACOSX_BUNDLE_INFO_STRING}</string>
+	<key>CFBundleIconFile</key>
+	<string>${MACOSX_BUNDLE_ICON_FILE}</string>
+	<key>CFBundleIdentifier</key>
+	<string>${MACOSX_BUNDLE_GUI_IDENTIFIER}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleLongVersionString</key>
+	<string>${MACOSX_BUNDLE_LONG_VERSION_STRING}</string>
+	<key>CFBundleName</key>
+	<string>${MACOSX_BUNDLE_BUNDLE_NAME}</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>${MACOSX_BUNDLE_SHORT_VERSION_STRING}</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string>
+	<key>CSResourcesFileMapped</key>
+	<true/>
+	<key>LSRequiresCarbon</key>
+	<true/>
+	<key>NSHumanReadableCopyright</key>
+	<string>${MACOSX_BUNDLE_COPYRIGHT}</string>
+</dict>
+</plist>
diff --git a/depends/pack200/anti200.cpp b/depends/pack200/anti200.cpp
index 3dfdb5dc..1e1ec0c8 100644
--- a/depends/pack200/anti200.cpp
+++ b/depends/pack200/anti200.cpp
@@ -8,21 +8,36 @@
 
 int main(int argc, char **argv)
 {
-	if (argc == 3)
+	if (argc != 3)
 	{
-		try
-		{
-			unpack_200(argv[1], argv[2]);
-		}
-		catch (std::runtime_error &e)
-		{
-			std::cerr << "Bad things happened: " << e.what() << std::endl;
-			return EXIT_FAILURE;
-		}
-		return EXIT_SUCCESS;
-	}
-	else
 		std::cerr << "Simple pack200 unpacker!" << std::endl << "Run like this:" << std::endl
 				  << "  " << argv[0] << " input.jar.lzma output.jar" << std::endl;
-	return EXIT_FAILURE;
+		return EXIT_FAILURE;
+	}
+
+	FILE *input = fopen(argv[1], "rb");
+	FILE *output = fopen(argv[2], "wb");
+	if (!input)
+	{
+		std::cerr << "Can't open input file";
+		return EXIT_FAILURE;
+	}
+	if (!output)
+	{
+		fclose(output);
+		std::cerr << "Can't open output file";
+		return EXIT_FAILURE;
+	}
+	try
+	{
+		unpack_200(input, output);
+	}
+	catch (std::runtime_error &e)
+	{
+		std::cerr << "Bad things happened: " << e.what() << std::endl;
+		fclose(input);
+		fclose(output);
+		return EXIT_FAILURE;
+	}
+	return EXIT_SUCCESS;
 }
diff --git a/depends/pack200/include/unpack200.h b/depends/pack200/include/unpack200.h
index bcee8009..f9239488 100644
--- a/depends/pack200/include/unpack200.h
+++ b/depends/pack200/include/unpack200.h
@@ -34,4 +34,4 @@
  * @return void
  * @throw std::runtime_error for any error encountered
  */
-void unpack_200(std::string input_path, std::string output_path);
+void unpack_200(FILE * input, FILE * output);
diff --git a/depends/pack200/src/unpack200.cpp b/depends/pack200/src/unpack200.cpp
index 0a9d2714..22b7f3b0 100644
--- a/depends/pack200/src/unpack200.cpp
+++ b/depends/pack200/src/unpack200.cpp
@@ -94,20 +94,9 @@ static int read_magic(unpacker *u, char peek[], int peeklen)
 	return magic;
 }
 
-void unpack_200(std::string input_path, std::string output_path)
+void unpack_200(FILE *input, FILE *output)
 {
 	unpacker u;
-	FILE *input = fopen(input_path.c_str(), "rb");
-	if (!input)
-	{
-		throw std::runtime_error("Can't open input file" + input_path);
-	}
-	FILE *output = fopen(output_path.c_str(), "wb");
-	if (!output)
-	{
-		fclose(output);
-		throw std::runtime_error("Can't open output file" + output_path);
-	}
 	u.init(read_input_via_stdio);
 
 	// initialize jar output
diff --git a/depends/settings/CMakeLists.txt b/depends/settings/CMakeLists.txt
index 154697f6..da853a73 100644
--- a/depends/settings/CMakeLists.txt
+++ b/depends/settings/CMakeLists.txt
@@ -5,44 +5,27 @@ find_package(Qt5Core REQUIRED)
 
 # Include Qt headers.
 include_directories(${Qt5Base_INCLUDE_DIRS})
-include_directories(${Qt5Network_INCLUDE_DIRS})
 
-SET(LIBSETTINGS_HEADERS
-include/libsettings_config.h
-
-include/inifile.h
-
-include/settingsobject.h
-include/setting.h
-include/overridesetting.h
-
-include/basicsettingsobject.h
-include/inisettingsobject.h
-
-include/keyring.h
-)
-
-SET(LIBSETTINGS_HEADERS_PRIVATE
-src/stubkeyring.h
-)
 
 SET(LIBSETTINGS_SOURCES
-src/inifile.cpp
+libsettings_config.h
 
-src/settingsobject.cpp
-src/setting.cpp
-src/overridesetting.cpp
+inifile.h
+inifile.cpp
 
-src/basicsettingsobject.cpp
-src/inisettingsobject.cpp
+settingsobject.h
+settingsobject.cpp
+inisettingsobject.h
+inisettingsobject.cpp
 
-src/keyring.cpp
-src/stubkeyring.cpp
+setting.h
+setting.cpp
+overridesetting.h
+overridesetting.cpp
 )
 
 # Set the include dir path.
-SET(LIBSETTINGS_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/include" PARENT_SCOPE)
-include_directories(${LIBSETTINGS_INCLUDE_DIR})
+SET(LIBSETTINGS_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}" PARENT_SCOPE)
 
 # Static link!
 ADD_DEFINITIONS(-DLIBSETTINGS_STATIC)
@@ -59,6 +42,6 @@ IF(MultiMC_CODE_COVERAGE)
 	SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -O0 --coverage")
 ENDIF(MultiMC_CODE_COVERAGE)
 
-add_library(libSettings STATIC ${LIBSETTINGS_SOURCES} ${LIBSETTINGS_HEADERS} ${LIBSETTINGS_HEADERS_PRIVATE})
+add_library(libSettings STATIC ${LIBSETTINGS_SOURCES})
 qt5_use_modules(libSettings Core)
 target_link_libraries(libSettings)
diff --git a/depends/settings/include/keyring.h b/depends/settings/include/keyring.h
deleted file mode 100644
index a4da23b1..00000000
--- a/depends/settings/include/keyring.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *	 http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <QString>
-
-#include "libsettings_config.h"
-
-/**
- * @file libsettings/include/keyring.h
- * Access to System Keyrings
- */
-
-/**
- * @brief The Keyring class
- * the System Keyring/Keychain/Wallet/Vault/etc
- */
-class LIBSETTINGS_EXPORT Keyring
-{
-public:
-	/**
-	 * @brief virtual dtor
-	 */
-	virtual ~Keyring() {};
-
-	/**
-	 * @brief the System Keyring instance
-	 * @return the Keyring instance
-	 */
-	static Keyring *instance();
-
-	/**
-	 * @brief store a password in the Keyring
-	 * @param service the service name
-	 * @param username the account name
-	 * @param password the password to store
-	 * @return success
-	 */
-	virtual bool storePassword(QString service, QString username, QString password) = 0;
-
-	/**
-	 * @brief get a password from the Keyring
-	 * @param service the service name
-	 * @param username the account name
-	 * @return the password (success=!isNull())
-	 */
-	virtual QString getPassword(QString service, QString username) = 0;
-
-	/**
-	 * @brief lookup a password
-	 * @param service the service name
-	 * @param username the account name
-	 * @return wether the password is available
-	 */
-	virtual bool hasPassword(QString service, QString username) = 0;
-
-	/**
-	 * @brief get a list of all stored accounts.
-	 * @param service the service name
-	 * @return
-	 */
-	virtual QStringList getStoredAccounts(QString service) = 0;
-
-	/**
-	 * @brief Remove the specified account from storage
-	 * @param service the service name
-	 * @param username the account name
-	 * @return
-	 */
-	virtual void removeStoredAccount(QString service, QString username) = 0;
-
-protected:
-	/// fall back to StubKeyring if false
-	virtual bool isValid()
-	{
-		return false;
-	}
-
-private:
-	static Keyring *m_instance;
-	static void destroy();
-};
diff --git a/depends/settings/src/inifile.cpp b/depends/settings/inifile.cpp
index 83aec15e..1170f0b1 100644
--- a/depends/settings/src/inifile.cpp
+++ b/depends/settings/inifile.cpp
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-#include "include/inifile.h"
+#include "inifile.h"
 
 #include <QFile>
 #include <QTextStream>
diff --git a/depends/settings/include/inifile.h b/depends/settings/inifile.h
index 27da7bf0..27da7bf0 100644
--- a/depends/settings/include/inifile.h
+++ b/depends/settings/inifile.h
diff --git a/depends/settings/src/inisettingsobject.cpp b/depends/settings/inisettingsobject.cpp
index 4a7a7428..5e52a56f 100644
--- a/depends/settings/src/inisettingsobject.cpp
+++ b/depends/settings/inisettingsobject.cpp
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#include "include/inisettingsobject.h"
-#include "include/setting.h"
+#include "inisettingsobject.h"
+#include "setting.h"
 
 INISettingsObject::INISettingsObject(const QString &path, QObject *parent)
 	: SettingsObject(parent)
@@ -32,31 +32,45 @@ void INISettingsObject::changeSetting(const Setting &setting, QVariant value)
 {
 	if (contains(setting.id()))
 	{
+		// valid value -> set the main config, remove all the sysnonyms
 		if (value.isValid())
-			m_ini.set(setting.configKey(), value);
+		{
+			auto list = setting.configKeys();
+			m_ini.set(list.takeFirst(), value);
+			for(auto iter: list)
+				m_ini.remove(iter);
+		}
+		// invalid -> remove all (just like resetSetting)
 		else
-			m_ini.remove(setting.configKey());
+		{
+			for(auto iter: setting.configKeys())
+				m_ini.remove(iter);
+		}
 		m_ini.saveFile(m_filePath);
 	}
 }
 
 void INISettingsObject::resetSetting(const Setting &setting)
 {
+	// if we have the setting, remove all the synonyms. ALL OF THEM
 	if (contains(setting.id()))
 	{
-		m_ini.remove(setting.configKey());
+		for(auto iter: setting.configKeys())
+			m_ini.remove(iter);
 		m_ini.saveFile(m_filePath);
 	}
 }
 
 QVariant INISettingsObject::retrieveValue(const Setting &setting)
 {
+	// if we have the setting, return value of the first matching synonym
 	if (contains(setting.id()))
 	{
-		return m_ini.get(setting.configKey(), QVariant());
-	}
-	else
-	{
-		return QVariant();
+		for(auto iter: setting.configKeys())
+		{
+			if(m_ini.contains(iter))
+				return m_ini[iter];
+		}
 	}
+	return QVariant();
 }
diff --git a/depends/settings/include/inisettingsobject.h b/depends/settings/inisettingsobject.h
index 8badc0c6..8badc0c6 100644
--- a/depends/settings/include/inisettingsobject.h
+++ b/depends/settings/inisettingsobject.h
diff --git a/depends/settings/include/libsettings_config.h b/depends/settings/libsettings_config.h
index ba77f640..e5beed28 100644
--- a/depends/settings/include/libsettings_config.h
+++ b/depends/settings/libsettings_config.h
@@ -26,3 +26,4 @@
 #define LIBSETTINGS_EXPORT Q_DECL_IMPORT
 #endif
 #endif
+
diff --git a/depends/settings/src/overridesetting.cpp b/depends/settings/overridesetting.cpp
index 5b10920d..7b5f5418 100644
--- a/depends/settings/src/overridesetting.cpp
+++ b/depends/settings/overridesetting.cpp
@@ -13,10 +13,10 @@
  * limitations under the License.
  */
 
-#include "include/overridesetting.h"
+#include "overridesetting.h"
 
-OverrideSetting::OverrideSetting(const QString &name, Setting *other, QObject *parent)
-	: Setting(name, QVariant(), parent)
+OverrideSetting::OverrideSetting(std::shared_ptr<Setting> other)
+	: Setting(other->configKeys(), QVariant())
 {
 	m_other = other;
 }
diff --git a/depends/settings/include/overridesetting.h b/depends/settings/overridesetting.h
index 3e60dc7c..5ef901d0 100644
--- a/depends/settings/include/overridesetting.h
+++ b/depends/settings/overridesetting.h
@@ -16,6 +16,7 @@
 #pragma once
 
 #include <QObject>
+#include <memory>
 
 #include "setting.h"
 
@@ -31,10 +32,10 @@ class LIBSETTINGS_EXPORT OverrideSetting : public Setting
 {
 	Q_OBJECT
 public:
-	explicit OverrideSetting(const QString &name, Setting *other, QObject *parent = 0);
+	explicit OverrideSetting(std::shared_ptr<Setting> other);
 
 	virtual QVariant defValue() const;
 
 protected:
-	Setting *m_other;
+	std::shared_ptr<Setting> m_other;
 };
diff --git a/depends/settings/src/setting.cpp b/depends/settings/setting.cpp
index 899463dc..0d685771 100644
--- a/depends/settings/src/setting.cpp
+++ b/depends/settings/setting.cpp
@@ -13,17 +13,17 @@
  * limitations under the License.
  */
 
-#include "include/setting.h"
-#include "include/settingsobject.h"
+#include "setting.h"
+#include "settingsobject.h"
 
-Setting::Setting(QString id, QVariant defVal, QObject *parent)
-	: QObject(parent), m_id(id), m_defVal(defVal)
+Setting::Setting(QStringList synonyms, QVariant defVal)
+	: QObject(), m_synonyms(synonyms), m_defVal(defVal)
 {
 }
 
 QVariant Setting::get() const
 {
-	SettingsObject *sbase = qobject_cast<SettingsObject *>(parent());
+	SettingsObject *sbase = m_storage;
 	if (!sbase)
 	{
 		return defValue();
diff --git a/depends/settings/include/setting.h b/depends/settings/setting.h
index 39490207..a73474d2 100644
--- a/depends/settings/include/setting.h
+++ b/depends/settings/setting.h
@@ -17,6 +17,8 @@
 
 #include <QObject>
 #include <QVariant>
+#include <QStringList>
+#include <memory>
 
 #include "libsettings_config.h"
 
@@ -29,11 +31,16 @@ class LIBSETTINGS_EXPORT Setting : public QObject
 {
 	Q_OBJECT
 public:
-	/*!
-	 * \brief Constructs a new Setting object with the given parent.
-	 * \param parent The Setting's parent object.
+	/**
+	 * Construct a Setting
+	 * 
+	 * Synonyms are all the possible names used in the settings object, in order of preference.
+	 * First synonym is the ID, which identifies the setting in MultiMC.
+	 * 
+	 * defVal is the default value that will be returned when the settings object
+	 * doesn't have any value for this setting.
 	 */
-	explicit Setting(QString id, QVariant defVal = QVariant(), QObject *parent = 0);
+	explicit Setting(QStringList synonyms, QVariant defVal = QVariant());
 
 	/*!
 	 * \brief Gets this setting's ID.
@@ -44,7 +51,7 @@ public:
 	 */
 	virtual QString id() const
 	{
-		return m_id;
+		return m_synonyms.first();
 	}
 
 	/*!
@@ -53,9 +60,9 @@ public:
 	 * the same as the setting's ID, but it can be different.
 	 * \return The setting's config file key.
 	 */
-	virtual QString configKey() const
+	virtual QStringList configKeys() const
 	{
-		return id();
+		return m_synonyms;
 	}
 
 	/*!
@@ -68,16 +75,6 @@ public:
 	virtual QVariant get() const;
 
 	/*!
-	 * \brief Gets this setting's actual value (I.E. not as a QVariant).
-	 * This function is just shorthand for get().value<T>()
-	 * \return The setting's actual value.
-	 */
-	template <typename T> inline T value() const
-	{
-		return get().value<T>();
-	}
-
-	/*!
 	 * \brief Gets this setting's default value.
 	 * \return The default value of this setting.
 	 */
@@ -111,11 +108,12 @@ slots:
 	 * \brief Reset the setting to default
 	 * This is done by emitting the settingReset() signal which will then be
 	 * handled by the SettingsObject object and cause the setting to change.
-	 * \param value The new value.
 	 */
 	virtual void reset();
 
 protected:
-	QString m_id;
+	friend class SettingsObject;
+	SettingsObject * m_storage;
+	QStringList m_synonyms;
 	QVariant m_defVal;
 };
diff --git a/depends/settings/src/settingsobject.cpp b/depends/settings/settingsobject.cpp
index 32a63b8d..43fc989a 100644
--- a/depends/settings/src/settingsobject.cpp
+++ b/depends/settings/settingsobject.cpp
@@ -13,8 +13,9 @@
  * limitations under the License.
  */
 
-#include "include/settingsobject.h"
-#include "include/setting.h"
+#include "settingsobject.h"
+#include "setting.h"
+#include "overridesetting.h"
 
 #include <QVariant>
 
@@ -22,17 +23,49 @@ SettingsObject::SettingsObject(QObject *parent) : QObject(parent)
 {
 }
 
-bool SettingsObject::registerSetting(Setting *setting)
+SettingsObject::~SettingsObject()
 {
-	// Check if setting is null or we already have a setting with the same ID.
-	if (!setting)
+	m_settings.clear();
+}
+
+std::shared_ptr<Setting> SettingsObject::registerOverride(std::shared_ptr<Setting> original)
+{
+	if (contains(original->id()))
 	{
-		qDebug(QString("Failed to register setting. Setting is null.")
-				   .arg(setting->id())
+		qDebug(QString("Failed to register setting %1. ID already exists.")
+				   .arg(original->id())
 				   .toUtf8());
-		return false; // Fail
+		return nullptr; // Fail
 	}
+	auto override = std::make_shared<OverrideSetting>(original);
+	override->m_storage = this;
+	connectSignals(*override);
+	m_settings.insert(override->id(), override);
+	return override;
+}
+
+std::shared_ptr<Setting> SettingsObject::registerSetting(QStringList synonyms, QVariant defVal)
+{
+	if (synonyms.empty())
+		return nullptr;
+	if (contains(synonyms.first()))
+	{
+		qDebug(QString("Failed to register setting %1. ID already exists.")
+				   .arg(synonyms.first())
+				   .toUtf8());
+		return nullptr; // Fail
+	}
+	auto setting = std::make_shared<Setting>(synonyms, defVal);
+	setting->m_storage = this;
+	connectSignals(*setting);
+	m_settings.insert(setting->id(), setting);
+	return setting;
+}
+
+/*
 
+bool SettingsObject::registerSetting(Setting *setting)
+{
 	if (contains(setting->id()))
 	{
 		qDebug(QString("Failed to register setting %1. ID already exists.")
@@ -50,21 +83,8 @@ bool SettingsObject::registerSetting(Setting *setting)
 	// qDebug(QString("Registered setting %1.").arg(setting->id()).toUtf8());
 	return true;
 }
-
-void SettingsObject::unregisterSetting(Setting *setting)
-{
-	if (!setting || !m_settings.contains(setting->id()))
-		return; // We can't unregister something that's not registered.
-
-	m_settings.remove(setting->id());
-
-	// Disconnect signals.
-	disconnectSignals(*setting);
-
-	setting->setParent(NULL); // Drop ownership.
-}
-
-Setting *SettingsObject::getSetting(const QString &id) const
+*/
+std::shared_ptr<Setting> SettingsObject::getSetting(const QString &id) const
 {
 	// Make sure there is a setting with the given ID.
 	if (!m_settings.contains(id))
@@ -75,13 +95,13 @@ Setting *SettingsObject::getSetting(const QString &id) const
 
 QVariant SettingsObject::get(const QString &id) const
 {
-	Setting *setting = getSetting(id);
+	auto setting = getSetting(id);
 	return (setting ? setting->get() : QVariant());
 }
 
 bool SettingsObject::set(const QString &id, QVariant value)
 {
-	Setting *setting = getSetting(id);
+	auto setting = getSetting(id);
 	if (!setting)
 	{
 		qDebug(QString("Error changing setting %1. Setting doesn't exist.").arg(id).toUtf8());
@@ -96,16 +116,11 @@ bool SettingsObject::set(const QString &id, QVariant value)
 
 void SettingsObject::reset(const QString &id) const
 {
-	Setting *setting = getSetting(id);
+	auto setting = getSetting(id);
 	if (setting)
 		setting->reset();
 }
 
-QList<Setting *> SettingsObject::getSettings()
-{
-	return m_settings.values();
-}
-
 bool SettingsObject::contains(const QString &id)
 {
 	return m_settings.contains(id);
@@ -121,16 +136,3 @@ void SettingsObject::connectSignals(const Setting &setting)
 	connect(&setting, SIGNAL(settingReset(Setting)), SLOT(resetSetting(const Setting &)));
 	connect(&setting, SIGNAL(settingReset(Setting)), SIGNAL(settingReset(const Setting &)));
 }
-
-void SettingsObject::disconnectSignals(const Setting &setting)
-{
-	setting.disconnect(SIGNAL(settingChanged(const Setting &, QVariant)), this,
-					   SLOT(changeSetting(const Setting &, QVariant)));
-	setting.disconnect(SIGNAL(settingChanged(const Setting &, QVariant)), this,
-					   SIGNAL(settingChanged(const Setting &, QVariant)));
-
-	setting.disconnect(SIGNAL(settingReset(const Setting &, QVariant)), this,
-					   SLOT(resetSetting(const Setting &, QVariant)));
-	setting.disconnect(SIGNAL(settingReset(const Setting &, QVariant)), this,
-					   SIGNAL(settingReset(const Setting &, QVariant)));
-}
diff --git a/depends/settings/include/settingsobject.h b/depends/settings/settingsobject.h
index 7a6b3cb6..27746f2d 100644
--- a/depends/settings/include/settingsobject.h
+++ b/depends/settings/settingsobject.h
@@ -17,6 +17,9 @@
 
 #include <QObject>
 #include <QMap>
+#include <QStringList>
+#include <QVariant>
+#include <memory>
 
 #include "libsettings_config.h"
 
@@ -39,32 +42,37 @@ class LIBSETTINGS_EXPORT SettingsObject : public QObject
 	Q_OBJECT
 public:
 	explicit SettingsObject(QObject *parent = 0);
+	virtual ~SettingsObject();
+	/*!
+	 * Registers an override setting for the given original setting in this settings object
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
+	 */
+	std::shared_ptr<Setting> registerOverride(std::shared_ptr<Setting> original);
 
 	/*!
-	 * \brief Registers the given setting with this SettingsObject and connects the necessary
-	 * signals.
+	 * Registers the given setting with this SettingsObject and connects the necessary  signals.
+	 *
 	 * This will fail if there is already a setting with the same ID as
 	 * the one that is being registered.
-	 * \note Registering a setting object causes the SettingsObject to take ownership
-	 * of the object. This means that setting's parent will be set to the object
-	 * it was registered with. Because the object it was registered with has taken
-	 * ownership, it becomes responsible for managing that setting object's memory.
-	 * \warning Do \b not delete the setting after registering it.
-	 * \param setting A pointer to the setting that will be registered.
-	 * \return True if successful. False if registry failed.
+	 * \return A valid Setting shared pointer if successful.
 	 */
-	virtual bool registerSetting(Setting *setting);
+	std::shared_ptr<Setting> registerSetting(QStringList synonyms,
+											 QVariant defVal = QVariant());
 
 	/*!
-	 * \brief Unregisters the given setting from this SettingsObject and disconnects its
-	 * signals.
-	 * \note This does not delete the setting. Furthermore, when the setting is
-	 * unregistered, the SettingsObject drops ownership of the setting. This means
-	 * that if you unregister a setting, its parent is set to null and you become
-	 * responsible for freeing its memory.
-	 * \param setting The setting to unregister.
+	 * Registers the given setting with this SettingsObject and connects the necessary signals.
+	 *
+	 * This will fail if there is already a setting with the same ID as
+	 * the one that is being registered.
+	 * \return A valid Setting shared pointer if successful.
 	 */
-	virtual void unregisterSetting(Setting *setting);
+	std::shared_ptr<Setting> registerSetting(QString id, QVariant defVal = QVariant())
+	{
+		return registerSetting(QStringList(id), defVal);
+	}
 
 	/*!
 	 * \brief Gets the setting with the given ID.
@@ -73,18 +81,7 @@ public:
 	 * Returns null if there is no setting with the given ID.
 	 * \sa operator []()
 	 */
-	virtual Setting *getSetting(const QString &id) const;
-
-	/*!
-	 * \brief Same as getSetting()
-	 * \param id The ID of the setting to get.
-	 * \return A pointer to the setting with the given ID.
-	 * \sa getSetting()
-	 */
-	inline Setting *operator[](const QString &id)
-	{
-		return getSetting(id);
-	}
+	std::shared_ptr<Setting> getSetting(const QString &id) const;
 
 	/*!
 	 * \brief Gets the value of the setting with the given ID.
@@ -92,7 +89,7 @@ public:
 	 * \return The setting's value as a QVariant.
 	 * If no setting with the given ID exists, returns an invalid QVariant.
 	 */
-	virtual QVariant get(const QString &id) const;
+	QVariant get(const QString &id) const;
 
 	/*!
 	 * \brief Sets the value of the setting with the given ID.
@@ -101,27 +98,20 @@ public:
 	 * \param value The new value of the setting.
 	 * \return True if successful, false if it failed.
 	 */
-	virtual bool set(const QString &id, QVariant value);
+	bool set(const QString &id, QVariant value);
 
 	/*!
 	 * \brief Reverts the setting with the given ID to default.
 	 * \param id The ID of the setting to reset.
 	 */
-	virtual void reset(const QString &id) const;
-
-	/*!
-	 * \brief Gets a QList with pointers to all of the registered settings.
-	 * The order of the entries in the list is undefined.
-	 * \return A QList with pointers to all registered settings.
-	 */
-	virtual QList<Setting *> getSettings();
+	void reset(const QString &id) const;
 
 	/*!
 	 * \brief Checks if this SettingsObject contains a setting with the given ID.
 	 * \param id The ID to check for.
 	 * \return True if the SettingsObject has a setting with the given ID.
 	 */
-	virtual bool contains(const QString &id);
+	bool contains(const QString &id);
 
 signals:
 	/*!
@@ -167,13 +157,7 @@ protected:
 	 * \brief Connects the necessary signals to the given Setting.
 	 * \param setting The setting to connect.
 	 */
-	virtual void connectSignals(const Setting &setting);
-
-	/*!
-	 * \brief Disconnects signals from the given Setting.
-	 * \param setting The setting to disconnect.
-	 */
-	virtual void disconnectSignals(const Setting &setting);
+	void connectSignals(const Setting &setting);
 
 	/*!
 	 * \brief Function used by Setting objects to get their values from the SettingsObject.
@@ -185,5 +169,5 @@ protected:
 	friend class Setting;
 
 private:
-	QMap<QString, Setting *> m_settings;
+	QMap<QString, std::shared_ptr<Setting>> m_settings;
 };
diff --git a/depends/settings/src/basicsettingsobject.cpp b/depends/settings/src/basicsettingsobject.cpp
deleted file mode 100644
index 96b38851..00000000
--- a/depends/settings/src/basicsettingsobject.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "include/basicsettingsobject.h"
-#include "include/setting.h"
-
-BasicSettingsObject::BasicSettingsObject(QObject *parent) : SettingsObject(parent)
-{
-}
-
-void BasicSettingsObject::changeSetting(const Setting &setting, QVariant value)
-{
-	if (contains(setting.id()))
-	{
-		if (value.isValid())
-			config.setValue(setting.configKey(), value);
-		else
-			config.remove(setting.configKey());
-	}
-}
-
-QVariant BasicSettingsObject::retrieveValue(const Setting &setting)
-{
-	if (contains(setting.id()))
-	{
-		return config.value(setting.configKey());
-	}
-	else
-	{
-		return QVariant();
-	}
-}
diff --git a/depends/settings/src/keyring.cpp b/depends/settings/src/keyring.cpp
deleted file mode 100644
index 9eaba684..00000000
--- a/depends/settings/src/keyring.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *	 http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "include/keyring.h"
-
-#include "osutils.h"
-
-#include "stubkeyring.h"
-
-// system specific keyrings
-/*#if defined(OSX)
-class OSXKeychain;
-#define KEYRING OSXKeychain
-#elif defined(LINUX)
-class XDGKeyring;
-#define KEYRING XDGKeyring
-#elif defined(WINDOWS)
-class Win32Keystore;
-#define KEYRING Win32Keystore
-#else
-#pragma message Keyrings are not supported on your os. Falling back to the insecure StubKeyring
-#endif*/
-
-Keyring *Keyring::instance()
-{
-	if (m_instance == nullptr)
-	{
-#ifdef KEYRING
-		m_instance = new KEYRING();
-		if (!m_instance->isValid())
-		{
-			qWarning("Could not create SystemKeyring! falling back to StubKeyring.");
-			m_instance = new StubKeyring();
-		}
-#else
-		qWarning("Keyrings are not supported on your OS. Fallback StubKeyring is insecure!");
-		m_instance = new StubKeyring();
-#endif
-		atexit(Keyring::destroy);
-	}
-	return m_instance;
-}
-
-void Keyring::destroy()
-{
-	delete m_instance;
-}
-
-Keyring *Keyring::m_instance;
diff --git a/depends/settings/src/stubkeyring.cpp b/depends/settings/src/stubkeyring.cpp
deleted file mode 100644
index 53fca025..00000000
--- a/depends/settings/src/stubkeyring.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *	 http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "stubkeyring.h"
-
-#include <QStringList>
-
-// Scrambling
-// this is NOT SAFE, but it's not plain either.
-int scrambler = 0x9586309;
-
-QString scramble(QString in_)
-{
-	QByteArray in = in_.toUtf8();
-	QByteArray out;
-	for (int i = 0; i < in.length(); i++)
-		out.append(in.at(i) ^ scrambler);
-	return QString::fromUtf8(out);
-}
-
-inline QString base64(QString in)
-{
-	return QString(in.toUtf8().toBase64());
-}
-inline QString unbase64(QString in)
-{
-	return QString::fromUtf8(QByteArray::fromBase64(in.toLatin1()));
-}
-
-inline QString scramble64(QString in)
-{
-	return base64(scramble(in));
-}
-inline QString unscramble64(QString in)
-{
-	return scramble(unbase64(in));
-}
-
-// StubKeyring implementation
-inline QString generateKey(QString service, QString username)
-{
-	return QString("%1/%2").arg(base64(service)).arg(scramble64(username));
-}
-
-bool StubKeyring::storePassword(QString service, QString username, QString password)
-{
-	m_settings.setValue(generateKey(service, username), scramble64(password));
-	return true;
-}
-
-QString StubKeyring::getPassword(QString service, QString username)
-{
-	QString key = generateKey(service, username);
-	if (!m_settings.contains(key))
-		return QString();
-	return unscramble64(m_settings.value(key).toString());
-}
-
-bool StubKeyring::hasPassword(QString service, QString username)
-{
-	return m_settings.contains(generateKey(service, username));
-}
-
-QStringList StubKeyring::getStoredAccounts(QString service)
-{
-	service = base64(service).append('/');
-	QStringList out;
-	QStringList in(m_settings.allKeys());
-	QStringListIterator it(in);
-	while (it.hasNext())
-	{
-		QString c = it.next();
-		if (c.startsWith(service))
-			out << unscramble64(c.mid(service.length()));
-	}
-	return out;
-}
-
-void StubKeyring::removeStoredAccount(QString service, QString username)
-{
-	QString key = generateKey(service, username);
-	m_settings.remove(key);
-}
-
-// FIXME: this needs tweaking/changes for user account level storage
-StubKeyring::StubKeyring()
-	:
-	  //	m_settings(QSettings::UserScope, "Orochimarufan", "Keyring")
-	  m_settings("keyring.cfg", QSettings::IniFormat)
-{
-}
diff --git a/depends/settings/src/stubkeyring.h b/depends/settings/src/stubkeyring.h
deleted file mode 100644
index 1f4b1be0..00000000
--- a/depends/settings/src/stubkeyring.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Authors: Orochimarufan <orochimarufan.x3@gmail.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *	 http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include "include/keyring.h"
-
-#include <QSettings>
-
-class StubKeyring : public Keyring
-{
-public:
-	/**
-	 * @brief virtual dtor
-	 */
-	virtual ~StubKeyring() {};
-
-	virtual bool storePassword(QString service, QString username, QString password);
-	virtual QString getPassword(QString service, QString username);
-	virtual bool hasPassword(QString service, QString username);
-	virtual QStringList getStoredAccounts(QString service);
-	virtual void removeStoredAccount(QString service, QString username);
-
-private:
-	friend class Keyring;
-	explicit StubKeyring();
-	virtual bool isValid()
-	{
-		return true;
-	}
-
-	QSettings m_settings;
-};
diff --git a/depends/util/src/pathutils.cpp b/depends/util/src/pathutils.cpp
index 485d03e8..20888754 100644
--- a/depends/util/src/pathutils.cpp
+++ b/depends/util/src/pathutils.cpp
@@ -23,10 +23,7 @@
 
 QString PathCombine(QString path1, QString path2)
 {
-	if (!path1.endsWith('/'))
-		return path1.append('/').append(path2);
-	else
-		return path1.append(path2);
+    return QDir::cleanPath(path1 + QDir::separator() + path2);
 }
 
 QString PathCombine(QString path1, QString path2, QString path3)
diff --git a/gui/ConsoleWindow.cpp b/gui/ConsoleWindow.cpp
index 24afbc0a..e640d261 100644
--- a/gui/ConsoleWindow.cpp
+++ b/gui/ConsoleWindow.cpp
@@ -58,10 +58,17 @@ ConsoleWindow::~ConsoleWindow()
 void ConsoleWindow::writeColor(QString text, const char *color)
 {
 	// append a paragraph
-	if (color != nullptr)
-		ui->text->appendHtml(QString("<font color=\"%1\">%2</font>").arg(color).arg(text));
-	else
-		ui->text->appendPlainText(text);
+	QString newtext;
+	newtext += "<span style=\"";
+	{
+		if(color)
+			newtext += QString("color:") + color + ";";
+		newtext += "font-family: monospace;";
+	}
+	newtext += "\">";
+	newtext += text.toHtmlEscaped();
+	newtext += "</span>";
+	ui->text->appendHtml(newtext);
 }
 
 void ConsoleWindow::write(QString data, MessageLevel::Enum mode)
diff --git a/gui/ConsoleWindow.ui b/gui/ConsoleWindow.ui
index 62cc89ac..c2307ecc 100644
--- a/gui/ConsoleWindow.ui
+++ b/gui/ConsoleWindow.ui
@@ -17,11 +17,6 @@
    <layout class="QVBoxLayout" name="verticalLayout">
     <item>
      <widget class="QPlainTextEdit" name="text">
-      <property name="font">
-       <font>
-        <pointsize>10</pointsize>
-       </font>
-      </property>
       <property name="undoRedoEnabled">
        <bool>false</bool>
       </property>
diff --git a/gui/MainWindow.cpp b/gui/MainWindow.cpp
index 85ad319b..42823fa5 100644
--- a/gui/MainWindow.cpp
+++ b/gui/MainWindow.cpp
@@ -66,7 +66,7 @@
 #include "logic/lists/InstanceList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/lists/LwjglVersionList.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 #include "logic/lists/JavaVersionList.h"
 
 #include "logic/auth/flows/AuthenticateTask.h"
@@ -90,7 +90,9 @@
 #include "logic/LegacyInstance.h"
 
 #include "logic/assets/AssetsUtils.h"
+#include "logic/assets/AssetsMigrateTask.h"
 #include <logic/updater/UpdateChecker.h>
+#include <logic/tasks/ThreadTask.h>
 
 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
 {
@@ -99,7 +101,7 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 	setWindowTitle(QString("MultiMC %1").arg(MMC->version().toString()));
 
 	// OSX magic.
-	setUnifiedTitleAndToolBarOnMac(true);
+	// setUnifiedTitleAndToolBarOnMac(true);
 
 	// The instance action toolbar customizations
 	{
@@ -178,6 +180,10 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 	connect(view->selectionModel(),
 			SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)), this,
 			SLOT(instanceChanged(const QModelIndex &, const QModelIndex &)));
+
+	// track icon changes and update the toolbar!
+	connect(MMC->icons().get(), SIGNAL(iconUpdated(QString)), SLOT(iconUpdated(QString)));
+
 	// model reset -> selection is invalid. All the instance pointers are wrong.
 	// FIXME: stop using POINTERS everywhere
 	connect(MMC->instances().get(), SIGNAL(dataIsInvalid()), SLOT(selectionBad()));
@@ -264,8 +270,14 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 
 		// set up the updater object.
 		auto updater = MMC->updateChecker();
-		QObject::connect(updater.get(), &UpdateChecker::updateAvailable, this,
-						 &MainWindow::updateAvailable);
+		connect(updater.get(), &UpdateChecker::updateAvailable, this,
+				&MainWindow::updateAvailable);
+		connect(updater.get(), &UpdateChecker::noUpdateFound, [this]()
+		{
+			CustomMessageBox::selectable(
+				this, tr("No update found."),
+				tr("No MultiMC update was found!\nYou are using the latest version."))->exec();
+		});
 		// if automatic update checks are allowed, start one.
 		if (MMC->settings()->get("AutoUpdate").toBool())
 			on_actionCheckUpdate_triggered();
@@ -292,8 +304,6 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
 
 	// removing this looks stupid
 	view->setFocus();
-
-	AssetsUtils::migrateOldAssets();
 }
 
 MainWindow::~MainWindow()
@@ -502,7 +512,7 @@ void MainWindow::downloadUpdates(QString repo, int versionId, bool installOnExit
 		if (installOnExit)
 			MMC->setUpdateOnExit(updateTask.updateFilesDir());
 		else
-			MMC->installUpdates(updateTask.updateFilesDir());
+			MMC->installUpdates(updateTask.updateFilesDir(), true);
 	}
 }
 
@@ -674,6 +684,20 @@ void MainWindow::on_actionChangeInstIcon_triggered()
 	}
 }
 
+void MainWindow::iconUpdated(QString icon)
+{
+	if(icon == m_currentInstIcon)
+	{
+		ui->actionChangeInstIcon->setIcon(MMC->icons()->getIcon(m_currentInstIcon));
+	}
+}
+
+void MainWindow::updateInstanceToolIcon(QString new_icon)
+{
+	m_currentInstIcon = new_icon;
+	ui->actionChangeInstIcon->setIcon(MMC->icons()->getIcon(m_currentInstIcon));
+}
+
 void MainWindow::on_actionChangeInstGroup_triggered()
 {
 	if (!m_selectedInstance)
@@ -721,7 +745,8 @@ void MainWindow::on_actionConfig_Folder_triggered()
 void MainWindow::on_actionCheckUpdate_triggered()
 {
 	auto updater = MMC->updateChecker();
-	updater->checkForUpdate();
+
+	updater->checkForUpdate(true);
 }
 
 void MainWindow::on_actionSettings_triggered()
@@ -905,6 +930,8 @@ void MainWindow::doLaunch()
 	if (!account.get())
 		return;
 
+	QString failReason = tr("Your account is currently not logged in. Please enter "
+							"your password to log in again.");
 	// do the login. if the account has an access token, try to refresh it first.
 	if (account->accountStatus() != NotVerified)
 	{
@@ -919,13 +946,28 @@ void MainWindow::doLaunch()
 		{
 			updateInstance(m_selectedInstance, account);
 		}
-		// revert from online to verified.
+		else
+		{
+			if (!task->successful())
+			{
+				failReason = task->failReason();
+			}
+			if (loginWithPassword(account, failReason))
+				updateInstance(m_selectedInstance, account);
+		}
+		// in any case, revert from online to verified.
+		account->downgrade();
+	}
+	else
+	{
+		if (loginWithPassword(account, failReason))
+		{
+			updateInstance(m_selectedInstance, account);
+			account->downgrade();
+		}
+		// in any case, revert from online to verified.
 		account->downgrade();
-		return;
 	}
-	if (loginWithPassword(account, tr("Your account is currently not logged in. Please enter "
-									  "your password to log in again.")))
-		updateInstance(m_selectedInstance, account);
 }
 
 bool MainWindow::loginWithPassword(MojangAccountPtr account, const QString &errorMsg)
@@ -1042,22 +1084,9 @@ void MainWindow::on_actionChangeInstMCVersion_triggered()
 	VersionSelectDialog vselect(m_selectedInstance->versionList().get(),
 								tr("Change Minecraft version"), this);
 	vselect.setFilter(1, "OneSix");
-	if (vselect.exec() && vselect.selectedVersion())
-	{
-		if (m_selectedInstance->versionIsCustom())
-		{
-			auto result = CustomMessageBox::selectable(
-				this, tr("Are you sure?"),
-				tr("This will remove any library/version customization you did previously. "
-				   "This includes things like Forge install and similar."),
-				QMessageBox::Warning, QMessageBox::Ok | QMessageBox::Abort,
-				QMessageBox::Abort)->exec();
-
-			if (result != QMessageBox::Ok)
-				return;
-		}
-		m_selectedInstance->setIntendedVersionId(vselect.selectedVersion()->descriptor());
-	}
+	if(!vselect.exec() || !vselect.selectedVersion())
+		return;
+
 	if (!MMC->accounts()->anyAccountIsValid())
 	{
 		CustomMessageBox::selectable(
@@ -1067,7 +1096,22 @@ void MainWindow::on_actionChangeInstMCVersion_triggered()
 			QMessageBox::Warning)->show();
 		return;
 	}
-	auto updateTask = m_selectedInstance->doUpdate(false /*only_prepare*/);
+
+	if (m_selectedInstance->versionIsCustom())
+	{
+		auto result = CustomMessageBox::selectable(
+			this, tr("Are you sure?"),
+			tr("This will remove any library/version customization you did previously. "
+				"This includes things like Forge install and similar."),
+			QMessageBox::Warning, QMessageBox::Ok | QMessageBox::Abort,
+			QMessageBox::Abort)->exec();
+
+		if (result != QMessageBox::Ok)
+			return;
+	}
+	m_selectedInstance->setIntendedVersionId(vselect.selectedVersion()->descriptor());
+
+	auto updateTask = m_selectedInstance->doUpdate(false);
 	if (!updateTask)
 	{
 		return;
@@ -1109,7 +1153,6 @@ void MainWindow::instanceChanged(const QModelIndex &current, const QModelIndex &
 							.value<void *>()))
 	{
 		ui->instanceToolBar->setEnabled(true);
-		QString iconKey = m_selectedInstance->iconKey();
 		renameButton->setText(m_selectedInstance->name());
 		ui->actionChangeInstLWJGLVersion->setEnabled(
 			m_selectedInstance->menuActionEnabled("actionChangeInstLWJGLVersion"));
@@ -1118,8 +1161,7 @@ void MainWindow::instanceChanged(const QModelIndex &current, const QModelIndex &
 		ui->actionChangeInstMCVersion->setEnabled(
 			m_selectedInstance->menuActionEnabled("actionChangeInstMCVersion"));
 		m_statusLeft->setText(m_selectedInstance->getStatusbarDescription());
-		auto ico = MMC->icons()->getIcon(iconKey);
-		ui->actionChangeInstIcon->setIcon(ico);
+		updateInstanceToolIcon(m_selectedInstance->iconKey());
 
 		MMC->settings()->set("SelectedInstance", m_selectedInstance->id());
 	}
@@ -1134,12 +1176,11 @@ void MainWindow::instanceChanged(const QModelIndex &current, const QModelIndex &
 void MainWindow::selectionBad()
 {
 	m_selectedInstance = nullptr;
-	QString iconKey = "infinity";
+
 	statusBar()->clearMessage();
 	ui->instanceToolBar->setEnabled(false);
 	renameButton->setText(tr("Rename Instance"));
-	auto ico = MMC->icons()->getIcon(iconKey);
-	ui->actionChangeInstIcon->setIcon(ico);
+	updateInstanceToolIcon("infinity");
 }
 
 void MainWindow::on_actionEditInstNotes_triggered()
@@ -1162,6 +1203,32 @@ void MainWindow::instanceEnded()
 	this->show();
 }
 
+void MainWindow::checkMigrateLegacyAssets()
+{
+	int legacyAssets = AssetsUtils::findLegacyAssets();
+	if(legacyAssets > 0)
+	{
+		ProgressDialog migrateDlg(this);
+		AssetsMigrateTask migrateTask(legacyAssets, &migrateDlg);
+		{
+			ThreadTask threadTask(&migrateTask);
+
+			if (migrateDlg.exec(&threadTask))
+			{
+				QLOG_INFO() << "Assets migration task completed successfully";
+			}
+			else
+			{
+				QLOG_INFO() << "Assets migration task reported failure";
+			}
+		}
+	}
+	else
+	{
+		QLOG_INFO() << "Didn't find any legacy assets to migrate";
+	}
+}
+
 void MainWindow::checkSetDefaultJava()
 {
 	bool askForJava = false;
diff --git a/gui/MainWindow.h b/gui/MainWindow.h
index 60fde281..f5b25006 100644
--- a/gui/MainWindow.h
+++ b/gui/MainWindow.h
@@ -51,6 +51,7 @@ public:
 	void openWebPage(QUrl url);
 
 	void checkSetDefaultJava();
+	void checkMigrateLegacyAssets();
 
 private
 slots:
@@ -145,6 +146,9 @@ slots:
 	void assetsFailed();
 	void assetsFinished();
 
+	// called when an icon is changed in the icon model.
+	void iconUpdated(QString);
+
 public
 slots:
 	void instanceActivated(QModelIndex);
@@ -173,6 +177,7 @@ slots:
 protected:
 	bool eventFilter(QObject *obj, QEvent *ev);
 	void setCatBackground(bool enabled);
+	void updateInstanceToolIcon(QString new_icon);
 
 private:
 	Ui::MainWindow *ui;
@@ -186,6 +191,7 @@ private:
 	QToolButton* newsLabel;
 
 	BaseInstance *m_selectedInstance;
+	QString m_currentInstIcon;
 
 	Task *m_versionLoadTask;
 
diff --git a/gui/dialogs/AboutDialog.ui b/gui/dialogs/AboutDialog.ui
index 7b91ebc8..df9b1a53 100644
--- a/gui/dialogs/AboutDialog.ui
+++ b/gui/dialogs/AboutDialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>706</width>
-    <height>579</height>
+    <width>707</width>
+    <height>593</height>
    </rect>
   </property>
   <property name="minimumSize">
@@ -103,8 +103,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>688</width>
-        <height>313</height>
+        <width>685</width>
+        <height>304</height>
        </rect>
       </property>
       <attribute name="label">
@@ -113,6 +113,9 @@
       <layout class="QVBoxLayout" name="verticalLayout_2">
        <item>
         <widget class="QLabel" name="aboutLabel">
+         <property name="enabled">
+          <bool>true</bool>
+         </property>
          <property name="text">
           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;MultiMC is a custom launcher that makes managing Minecraft easier by allowing you to have multiple instances of Minecraft at once.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
@@ -162,8 +165,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>688</width>
-        <height>313</height>
+        <width>685</width>
+        <height>304</height>
        </rect>
       </property>
       <attribute name="label">
@@ -179,13 +182,22 @@
           <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Cantarell'; font-size:11pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;Andrew Okin &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:forkk@forkk.net&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;forkk@forkk.net&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;Petr Mrázek &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:peterix@gmail.com&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;peterix@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;Orochimarufan &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:orochimarufan.x3@gmail.com&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;orochimarufan.x3@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;TakSuyu &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:taksuyu@gmail.com&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;taksuyu@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;Sky (Drayshak) &amp;lt;&lt;/span&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;multimc@bunnies.cc&lt;/span&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;Kilobyte &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:stiepen22@gmx.de&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; text-decoration: underline; color:#0000ff;&quot;&gt;stiepen22@gmx.de&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-family:'Ubuntu';&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:7.8pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt; font-weight:600;&quot;&gt;MultiMC&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Andrew Okin &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:forkk@forkk.net&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;forkk@forkk.net&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Petr Mrázek &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:peterix@gmail.com&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;peterix@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Sky &amp;lt;&lt;/span&gt;&lt;a href=&quot;https://www.twitter.com/drayshak&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;@drayshak&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:10pt; font-weight:600;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Ubuntu'; font-size:10pt; font-weight:600;&quot;&gt;With thanks to&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Orochimarufan &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:orochimarufan.x3@gmail.com&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;orochimarufan.x3@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;TakSuyu &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:taksuyu@gmail.com&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;taksuyu@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Kilobyte &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:stiepen22@gmx.de&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;stiepen22@gmx.de&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Jan (02JanDal) &amp;lt;&lt;/span&gt;&lt;a href=&quot;mailto:02jandal@gmail.com&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;02jandal@gmail.com&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Robotbrain &amp;lt;&lt;/span&gt;&lt;a href=&quot;https://twitter.com/skylordelros&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;@skylordelros&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt;&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Rootbear75 &amp;lt;&lt;/span&gt;&lt;a href=&quot;https://twitter.com/rootbear75&quot;&gt;&lt;span style=&quot; font-size:10pt; text-decoration: underline; color:#0000ff;&quot;&gt;@rootbear75&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;&amp;gt; (build server)&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="textInteractionFlags">
+          <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
          </property>
         </widget>
        </item>
@@ -206,8 +218,8 @@ p, li { white-space: pre-wrap; }
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>688</width>
-        <height>313</height>
+        <width>684</width>
+        <height>290</height>
        </rect>
       </property>
       <attribute name="label">
@@ -234,9 +246,9 @@ p, li { white-space: pre-wrap; }
           <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'DejaVu Sans Mono'; font-size:11pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'DejaVu Sans Mono'; font-size:7.8pt; font-weight:400; font-style:normal;&quot;&gt;
 &lt;p align=&quot;center&quot; style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:18pt; font-weight:600;&quot;&gt;MultiMC&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Copyright 2012 MultiMC Contributors&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Copyright 2012-2014 MultiMC Contributors&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;Licensed under the Apache License, Version 2.0 (the &amp;quot;License&amp;quot;);&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;you may not use this file except in compliance with the License.&lt;/span&gt;&lt;/p&gt;
 &lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:10pt;&quot;&gt;You may obtain a copy of the License at&lt;/span&gt;&lt;/p&gt;
@@ -361,6 +373,39 @@ p, li { white-space: pre-wrap; }
        </item>
       </layout>
      </widget>
+     <widget class="QWidget" name="forkPage">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>684</width>
+        <height>290</height>
+       </rect>
+      </property>
+      <attribute name="label">
+       <string>Forking/Redistribution</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_33">
+       <item>
+        <widget class="QTextEdit" name="textEdit">
+         <property name="html">
+          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
+p, li { white-space: pre-wrap; }
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:7.8pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt;We keep MultiMC open source because we think it's important to be able to see the source code for a project like this, and we do so using the Apache license.&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt;Part of the reason for using the Apache license is we don't want people using the &amp;quot;MultiMC&amp;quot; name when redistributing the project. This means people must take the time to go through the source code and remove all references to &amp;quot;MultiMC&amp;quot;, including but not limited to the project icon and the title of windows, (no *MultiMC-fork* in the title).&lt;/span&gt;&lt;/p&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt;The Apache license covers reasonable use for the name - a mention of the project's origins in the About dialog and the license is acceptable. However, it should be abundantly clear that the project is a fork &lt;/span&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:11pt; font-weight:600;&quot;&gt;without&lt;/span&gt;&lt;span style=&quot; font-family:'Bitstream Vera Sans'; font-size:11pt;&quot;&gt; implying that you have our blessing.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
+         <property name="textInteractionFlags">
+          <set>Qt::LinksAccessibleByKeyboard|Qt::LinksAccessibleByMouse|Qt::TextBrowserInteraction|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
     </widget>
    </item>
    <item>
diff --git a/gui/dialogs/AccountListDialog.cpp b/gui/dialogs/AccountListDialog.cpp
index 242590fb..1712e352 100644
--- a/gui/dialogs/AccountListDialog.cpp
+++ b/gui/dialogs/AccountListDialog.cpp
@@ -26,7 +26,9 @@
 #include <gui/dialogs/EditAccountDialog.h>
 #include <gui/dialogs/ProgressDialog.h>
 #include <gui/dialogs/AccountSelectDialog.h>
+#include "CustomMessageBox.h"
 #include <logic/tasks/Task.h>
+#include <logic/auth/YggdrasilTask.h>
 
 #include <MultiMC.h>
 
@@ -147,5 +149,12 @@ void AccountListDialog::addAccount(const QString& errMsg)
 
 			job->start();
 		}
+		else
+		{
+			auto reason = task->failReason();
+			auto dlg = CustomMessageBox::selectable(this, tr("Login error."), reason, QMessageBox::Critical);
+			dlg->exec();
+			delete dlg;
+		}
 	}
 }
diff --git a/gui/dialogs/CopyInstanceDialog.cpp b/gui/dialogs/CopyInstanceDialog.cpp
index 9d7ac30c..4095408b 100644
--- a/gui/dialogs/CopyInstanceDialog.cpp
+++ b/gui/dialogs/CopyInstanceDialog.cpp
@@ -27,7 +27,7 @@
 
 #include "logic/InstanceFactory.h"
 #include "logic/BaseVersion.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/tasks/Task.h"
 #include "logic/BaseInstance.h"
diff --git a/gui/dialogs/EditAccountDialog.cpp b/gui/dialogs/EditAccountDialog.cpp
index dd3f0523..a1bd5591 100644
--- a/gui/dialogs/EditAccountDialog.cpp
+++ b/gui/dialogs/EditAccountDialog.cpp
@@ -15,6 +15,8 @@
 
 #include "EditAccountDialog.h"
 #include "ui_EditAccountDialog.h"
+#include <QDesktopServices>
+#include <QUrl>
 
 EditAccountDialog::EditAccountDialog(const QString &text, QWidget *parent, int flags)
 	: QDialog(parent), ui(new Ui::EditAccountDialog)
@@ -33,6 +35,11 @@ EditAccountDialog::~EditAccountDialog()
 	delete ui;
 }
 
+void EditAccountDialog::on_label_linkActivated(const QString &link)
+{
+	QDesktopServices::openUrl(QUrl(link));
+}
+
 QString EditAccountDialog::username() const
 {
 	return ui->userTextBox->text();
diff --git a/gui/dialogs/EditAccountDialog.h b/gui/dialogs/EditAccountDialog.h
index be3a88d8..83f25124 100644
--- a/gui/dialogs/EditAccountDialog.h
+++ b/gui/dialogs/EditAccountDialog.h
@@ -52,6 +52,9 @@ public:
 		PasswordField,
 	};
 
+private slots:
+  void on_label_linkActivated(const QString &link);
+
 private:
 	Ui::EditAccountDialog *ui;
 };
diff --git a/gui/dialogs/EditAccountDialog.ui b/gui/dialogs/EditAccountDialog.ui
index 1a8f9dba..5f727bd4 100644
--- a/gui/dialogs/EditAccountDialog.ui
+++ b/gui/dialogs/EditAccountDialog.ui
@@ -19,6 +19,12 @@
      <property name="text">
       <string>Message label placeholder.</string>
      </property>
+     <property name="textFormat">
+      <enum>Qt::RichText</enum>
+     </property>
+     <property name="textInteractionFlags">
+      <set>Qt::LinksAccessibleByKeyboard|Qt::LinksAccessibleByMouse|Qt::TextBrowserInteraction|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+     </property>
     </widget>
    </item>
    <item>
diff --git a/gui/dialogs/IconPickerDialog.cpp b/gui/dialogs/IconPickerDialog.cpp
index 99d6dc9a..f7970b37 100644
--- a/gui/dialogs/IconPickerDialog.cpp
+++ b/gui/dialogs/IconPickerDialog.cpp
@@ -25,7 +25,7 @@
 #include "gui/Platform.h"
 #include "gui/widgets/InstanceDelegate.h"
 
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 
 IconPickerDialog::IconPickerDialog(QWidget *parent)
 	: QDialog(parent), ui(new Ui::IconPickerDialog)
@@ -103,7 +103,7 @@ void IconPickerDialog::addNewIcon()
 	QString selectIcons = tr("Select Icons");
 	//: The type of icon files
 	QStringList fileNames = QFileDialog::getOpenFileNames(this, selectIcons, QString(),
-														  tr("Icons") + "(*.png *.jpg *.jpeg)");
+														  tr("Icons") + "(*.png *.jpg *.jpeg *.ico)");
 	MMC->icons()->installIcons(fileNames);
 }
 
diff --git a/gui/dialogs/InstanceSettings.cpp b/gui/dialogs/InstanceSettings.cpp
index 641c7fab..edb4a921 100644
--- a/gui/dialogs/InstanceSettings.cpp
+++ b/gui/dialogs/InstanceSettings.cpp
@@ -36,6 +36,9 @@ InstanceSettings::InstanceSettings(SettingsObject *obj, QWidget *parent)
 {
 	MultiMCPlatform::fixWM_CLASS(this);
 	ui->setupUi(this);
+
+	restoreGeometry(QByteArray::fromBase64(MMC->settings()->get("SettingsGeometry").toByteArray()));
+
 	loadSettings();
 }
 
@@ -47,7 +50,13 @@ InstanceSettings::~InstanceSettings()
 void InstanceSettings::showEvent(QShowEvent *ev)
 {
 	QDialog::showEvent(ev);
-	adjustSize();
+}
+
+void InstanceSettings::closeEvent(QCloseEvent *ev)
+{
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
+
+	QDialog::closeEvent(ev);
 }
 
 void InstanceSettings::on_customCommandsGroupBox_toggled(bool state)
@@ -57,12 +66,16 @@ void InstanceSettings::on_customCommandsGroupBox_toggled(bool state)
 
 void InstanceSettings::on_buttonBox_accepted()
 {
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
+
 	applySettings();
 	accept();
 }
 
 void InstanceSettings::on_buttonBox_rejected()
 {
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
+
 	reject();
 }
 
@@ -98,18 +111,6 @@ void InstanceSettings::applySettings()
 		m_obj->reset("MinecraftWinHeight");
 	}
 
-	// Auto Login
-	bool login = ui->accountSettingsBox->isChecked();
-	m_obj->set("OverrideLogin", login);
-	if (login)
-	{
-		m_obj->set("AutoLogin", ui->autoLoginCheckBox->isChecked());
-	}
-	else
-	{
-		m_obj->reset("AutoLogin");
-	}
-
 	// Memory
 	bool memory = ui->memoryGroupBox->isChecked();
 	m_obj->set("OverrideMemory", memory);
@@ -170,10 +171,6 @@ void InstanceSettings::loadSettings()
 	ui->windowWidthSpinBox->setValue(m_obj->get("MinecraftWinWidth").toInt());
 	ui->windowHeightSpinBox->setValue(m_obj->get("MinecraftWinHeight").toInt());
 
-	// Auto Login
-	ui->accountSettingsBox->setChecked(m_obj->get("OverrideLogin").toBool());
-	ui->autoLoginCheckBox->setChecked(m_obj->get("AutoLogin").toBool());
-
 	// Memory
 	ui->memoryGroupBox->setChecked(m_obj->get("OverrideMemory").toBool());
 	ui->minMemSpinBox->setValue(m_obj->get("MinMemAlloc").toInt());
@@ -243,4 +240,4 @@ void InstanceSettings::checkFinished(JavaCheckResult result)
 			tr("The specified java binary didn't work. You should use the auto-detect feature, "
 			   "or set the path to the java executable."));
 	}
-}
\ No newline at end of file
+}
diff --git a/gui/dialogs/InstanceSettings.h b/gui/dialogs/InstanceSettings.h
index 1e7b9f6e..e296db4c 100644
--- a/gui/dialogs/InstanceSettings.h
+++ b/gui/dialogs/InstanceSettings.h
@@ -39,6 +39,7 @@ public:
 
 protected:
 	virtual void showEvent(QShowEvent *);
+	virtual void closeEvent(QCloseEvent *);
 private
 slots:
 	void on_customCommandsGroupBox_toggled(bool arg1);
diff --git a/gui/dialogs/InstanceSettings.ui b/gui/dialogs/InstanceSettings.ui
index c4a7d6ed..9260caea 100644
--- a/gui/dialogs/InstanceSettings.ui
+++ b/gui/dialogs/InstanceSettings.ui
@@ -132,31 +132,6 @@
         </widget>
        </item>
        <item>
-        <widget class="QGroupBox" name="accountSettingsBox">
-         <property name="enabled">
-          <bool>true</bool>
-         </property>
-         <property name="title">
-          <string>Account Settings</string>
-         </property>
-         <property name="checkable">
-          <bool>true</bool>
-         </property>
-         <property name="checked">
-          <bool>false</bool>
-         </property>
-         <layout class="QVBoxLayout" name="verticalLayout_6">
-          <item>
-           <widget class="QCheckBox" name="autoLoginCheckBox">
-            <property name="text">
-             <string>Login automatically when an instance icon is double clicked?</string>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item>
         <spacer name="verticalSpacerMinecraft">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
@@ -411,7 +386,6 @@
   <tabstop>consoleSettingsBox</tabstop>
   <tabstop>showConsoleCheck</tabstop>
   <tabstop>autoCloseConsoleCheck</tabstop>
-  <tabstop>accountSettingsBox</tabstop>
   <tabstop>memoryGroupBox</tabstop>
   <tabstop>minMemSpinBox</tabstop>
   <tabstop>maxMemSpinBox</tabstop>
diff --git a/gui/dialogs/NewInstanceDialog.cpp b/gui/dialogs/NewInstanceDialog.cpp
index 5b2cd086..c7b273af 100644
--- a/gui/dialogs/NewInstanceDialog.cpp
+++ b/gui/dialogs/NewInstanceDialog.cpp
@@ -19,7 +19,7 @@
 
 #include "logic/InstanceFactory.h"
 #include "logic/BaseVersion.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 #include "logic/lists/MinecraftVersionList.h"
 #include "logic/tasks/Task.h"
 
diff --git a/gui/dialogs/OneSixModEditDialog.cpp b/gui/dialogs/OneSixModEditDialog.cpp
index 51ea2d19..3982f17d 100644
--- a/gui/dialogs/OneSixModEditDialog.cpp
+++ b/gui/dialogs/OneSixModEditDialog.cpp
@@ -38,6 +38,7 @@
 #include "logic/EnabledItemFilter.h"
 #include "logic/lists/ForgeVersionList.h"
 #include "logic/ForgeInstaller.h"
+#include "logic/LiteLoaderInstaller.h"
 
 OneSixModEditDialog::OneSixModEditDialog(OneSixInstance *inst, QWidget *parent)
 	: QDialog(parent), ui(new Ui::OneSixModEditDialog), m_inst(inst)
@@ -95,6 +96,8 @@ void OneSixModEditDialog::updateVersionControls()
 	ui->customizeBtn->setEnabled(!customVersion);
 	ui->revertBtn->setEnabled(customVersion);
 	ui->forgeBtn->setEnabled(true);
+	ui->liteloaderBtn->setEnabled(LiteLoaderInstaller(m_inst->intendedVersionId()).canApply());
+	ui->customEditorBtn->setEnabled(customVersion);
 }
 
 void OneSixModEditDialog::disableVersionControls()
@@ -102,6 +105,8 @@ void OneSixModEditDialog::disableVersionControls()
 	ui->customizeBtn->setEnabled(false);
 	ui->revertBtn->setEnabled(false);
 	ui->forgeBtn->setEnabled(false);
+	ui->liteloaderBtn->setEnabled(false);
+	ui->customEditorBtn->setEnabled(false);
 }
 
 void OneSixModEditDialog::on_customizeBtn_clicked()
@@ -131,6 +136,17 @@ void OneSixModEditDialog::on_revertBtn_clicked()
 	}
 }
 
+void OneSixModEditDialog::on_customEditorBtn_clicked()
+{
+	if (m_inst->versionIsCustom())
+	{
+		if (!MMC->openJsonEditor(m_inst->instanceRoot() + "/custom.json"))
+		{
+			QMessageBox::warning(this, tr("Error"), tr("Unable to open custom.json, check the settings"));
+		}
+	}
+}
+
 void OneSixModEditDialog::on_forgeBtn_clicked()
 {
 	VersionSelectDialog vselect(MMC->forgelist().get(), tr("Select Forge version"), this);
@@ -204,6 +220,32 @@ void OneSixModEditDialog::on_forgeBtn_clicked()
 	}
 }
 
+void OneSixModEditDialog::on_liteloaderBtn_clicked()
+{
+	LiteLoaderInstaller liteloader(m_inst->intendedVersionId());
+	if (!liteloader.canApply())
+	{
+		QMessageBox::critical(
+			this, tr("LiteLoader"),
+			tr("There is no information available on how to install LiteLoader "
+			   "into this version of Minecraft"));
+		return;
+	}
+	if (!m_inst->versionIsCustom())
+	{
+		m_inst->customizeVersion();
+		m_version = m_inst->getFullVersion();
+		main_model->setSourceModel(m_version.get());
+		updateVersionControls();
+	}
+	if (!liteloader.apply(m_version))
+	{
+		QMessageBox::critical(
+			this, tr("LiteLoader"),
+			tr("For reasons unknown, the LiteLoader installation failed. Check your MultiMC log files for details."));
+	}
+}
+
 bool OneSixModEditDialog::loaderListFilter(QKeyEvent *keyEvent)
 {
 	switch (keyEvent->key())
diff --git a/gui/dialogs/OneSixModEditDialog.h b/gui/dialogs/OneSixModEditDialog.h
index 5376e526..2510c59c 100644
--- a/gui/dialogs/OneSixModEditDialog.h
+++ b/gui/dialogs/OneSixModEditDialog.h
@@ -44,8 +44,10 @@ slots:
 	// Questionable: SettingsDialog doesn't need this for some reason?
 	void on_buttonBox_rejected();
 	void on_forgeBtn_clicked();
+	void on_liteloaderBtn_clicked();
 	void on_customizeBtn_clicked();
 	void on_revertBtn_clicked();
+	void on_customEditorBtn_clicked();
 	void updateVersionControls();
 	void disableVersionControls();
 
diff --git a/gui/dialogs/OneSixModEditDialog.ui b/gui/dialogs/OneSixModEditDialog.ui
index 48aa87ee..899e0cbf 100644
--- a/gui/dialogs/OneSixModEditDialog.ui
+++ b/gui/dialogs/OneSixModEditDialog.ui
@@ -78,6 +78,13 @@
           </widget>
          </item>
          <item>
+          <widget class="QPushButton" name="liteloaderBtn">
+           <property name="text">
+            <string>Install LiteLoader</string>
+           </property>
+          </widget>
+         </item>
+         <item>
           <widget class="QPushButton" name="customizeBtn">
            <property name="toolTip">
             <string>Create an customized copy of the base version</string>
@@ -137,6 +144,20 @@
           </widget>
          </item>
          <item>
+          <widget class="Line" name="line_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="customEditorBtn">
+           <property name="text">
+            <string>Open custom.json</string>
+           </property>
+          </widget>
+         </item>
+         <item>
           <spacer name="verticalSpacer_7">
            <property name="orientation">
             <enum>Qt::Vertical</enum>
diff --git a/gui/dialogs/SettingsDialog.cpp b/gui/dialogs/SettingsDialog.cpp
index e7f537e3..9362075e 100644
--- a/gui/dialogs/SettingsDialog.cpp
+++ b/gui/dialogs/SettingsDialog.cpp
@@ -40,6 +40,12 @@ SettingsDialog::SettingsDialog(QWidget *parent) : QDialog(parent), ui(new Ui::Se
 	ui->sortingModeGroup->setId(ui->sortByNameBtn, Sort_Name);
 	ui->sortingModeGroup->setId(ui->sortLastLaunchedBtn, Sort_LastLaunch);
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)
+	ui->jsonEditorTextBox->setClearButtonEnabled(true);
+#endif
+
+	restoreGeometry(QByteArray::fromBase64(MMC->settings()->get("SettingsGeometry").toByteArray()));
+
 	loadSettings(MMC->settings().get());
 	updateCheckboxStuff();
 }
@@ -51,7 +57,13 @@ SettingsDialog::~SettingsDialog()
 void SettingsDialog::showEvent(QShowEvent *ev)
 {
 	QDialog::showEvent(ev);
-	adjustSize();
+}
+
+void SettingsDialog::closeEvent(QCloseEvent *ev)
+{
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
+
+	QDialog::closeEvent(ev);
 }
 
 void SettingsDialog::updateCheckboxStuff()
@@ -60,6 +72,32 @@ void SettingsDialog::updateCheckboxStuff()
 	ui->windowHeightSpinBox->setEnabled(!ui->maximizedCheckBox->isChecked());
 }
 
+void SettingsDialog::on_ftbLauncherBrowseBtn_clicked()
+{
+	QString raw_dir = QFileDialog::getExistingDirectory(this, tr("FTB Launcher Directory"),
+														ui->ftbLauncherBox->text());
+	QString cooked_dir = NormalizePath(raw_dir);
+
+	// do not allow current dir - it's dirty. Do not allow dirs that don't exist
+	if (!cooked_dir.isEmpty() && QDir(cooked_dir).exists())
+	{
+		ui->ftbLauncherBox->setText(cooked_dir);
+	}
+}
+
+void SettingsDialog::on_ftbBrowseBtn_clicked()
+{
+	QString raw_dir = QFileDialog::getExistingDirectory(this, tr("FTB Directory"),
+														ui->ftbBox->text());
+	QString cooked_dir = NormalizePath(raw_dir);
+
+	// do not allow current dir - it's dirty. Do not allow dirs that don't exist
+	if (!cooked_dir.isEmpty() && QDir(cooked_dir).exists())
+	{
+		ui->ftbBox->setText(cooked_dir);
+	}
+}
+
 void SettingsDialog::on_instDirBrowseBtn_clicked()
 {
 	QString raw_dir = QFileDialog::getExistingDirectory(this, tr("Instance Directory"),
@@ -72,6 +110,18 @@ void SettingsDialog::on_instDirBrowseBtn_clicked()
 		ui->instDirTextBox->setText(cooked_dir);
 	}
 }
+void SettingsDialog::on_iconsDirBrowseBtn_clicked()
+{
+	QString raw_dir = QFileDialog::getExistingDirectory(this, tr("Icons Directory"),
+														ui->iconsDirTextBox->text());
+	QString cooked_dir = NormalizePath(raw_dir);
+
+	// do not allow current dir - it's dirty. Do not allow dirs that don't exist
+	if (!cooked_dir.isEmpty() && QDir(cooked_dir).exists())
+	{
+		ui->iconsDirTextBox->setText(cooked_dir);
+	}
+}
 
 void SettingsDialog::on_modsDirBrowseBtn_clicked()
 {
@@ -99,6 +149,36 @@ void SettingsDialog::on_lwjglDirBrowseBtn_clicked()
 	}
 }
 
+void SettingsDialog::on_jsonEditorBrowseBtn_clicked()
+{
+	QString raw_file = QFileDialog::getOpenFileName(
+		this, tr("JSON Editor"),
+		ui->jsonEditorTextBox->text().isEmpty()
+	#if defined(Q_OS_LINUX)
+				? QString("/usr/bin")
+	#else
+			? QStandardPaths::standardLocations(QStandardPaths::ApplicationsLocation).first()
+	#endif
+			: ui->jsonEditorTextBox->text());
+	QString cooked_file = NormalizePath(raw_file);
+
+	if (cooked_file.isEmpty())
+	{
+		return;
+	}
+
+	// it has to exist and be an executable
+	if (QFileInfo(cooked_file).exists() &&
+		QFileInfo(cooked_file).isExecutable())
+	{
+		ui->jsonEditorTextBox->setText(cooked_file);
+	}
+	else
+	{
+		QMessageBox::warning(this, tr("Invalid"), tr("The file chosen does not seem to be an executable"));
+	}
+}
+
 void SettingsDialog::on_maximizedCheckBox_clicked(bool checked)
 {
 	Q_UNUSED(checked);
@@ -108,6 +188,13 @@ void SettingsDialog::on_maximizedCheckBox_clicked(bool checked)
 void SettingsDialog::on_buttonBox_accepted()
 {
 	applySettings(MMC->settings().get());
+
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
+}
+
+void SettingsDialog::on_buttonBox_rejected()
+{
+	MMC->settings()->set("SettingsGeometry", saveGeometry().toBase64());
 }
 
 void SettingsDialog::applySettings(SettingsObject *s)
@@ -135,11 +222,29 @@ void SettingsDialog::applySettings(SettingsObject *s)
 	// Updates
 	s->set("AutoUpdate", ui->autoUpdateCheckBox->isChecked());
 
+	// FTB
+	s->set("TrackFTBInstances", ui->trackFtbBox->isChecked());
+	s->set("FTBLauncherRoot", ui->ftbLauncherBox->text());
+	s->set("FTBRoot", ui->ftbBox->text());
+
 	// Folders
 	// TODO: Offer to move instances to new instance folder.
 	s->set("InstanceDir", ui->instDirTextBox->text());
 	s->set("CentralModsDir", ui->modsDirTextBox->text());
 	s->set("LWJGLDir", ui->lwjglDirTextBox->text());
+	s->set("IconsDir", ui->iconsDirTextBox->text());
+
+	// Editors
+	QString jsonEditor = ui->jsonEditorTextBox->text();
+	if (!jsonEditor.isEmpty() && (!QFileInfo(jsonEditor).exists() || !QFileInfo(jsonEditor).isExecutable()))
+	{
+		QString found = QStandardPaths::findExecutable(jsonEditor);
+		if (!found.isEmpty())
+		{
+			jsonEditor = found;
+		}
+	}
+	s->set("JsonEditor", jsonEditor);
 
 	// Console
 	s->set("ShowConsole", ui->showConsoleCheck->isChecked());
@@ -150,9 +255,6 @@ void SettingsDialog::applySettings(SettingsObject *s)
 	s->set("MinecraftWinWidth", ui->windowWidthSpinBox->value());
 	s->set("MinecraftWinHeight", ui->windowHeightSpinBox->value());
 
-	// Auto Login
-	s->set("AutoLogin", ui->autoLoginCheckBox->isChecked());
-
 	// Memory
 	s->set("MinMemAlloc", ui->minMemSpinBox->value());
 	s->set("MaxMemAlloc", ui->maxMemSpinBox->value());
@@ -188,10 +290,19 @@ void SettingsDialog::loadSettings(SettingsObject *s)
 	ui->autoUpdateCheckBox->setChecked(s->get("AutoUpdate").toBool());
 	ui->devBuildsCheckBox->setChecked(s->get("UseDevBuilds").toBool());
 
+	// FTB
+	ui->trackFtbBox->setChecked(s->get("TrackFTBInstances").toBool());
+	ui->ftbLauncherBox->setText(s->get("FTBLauncherRoot").toString());
+	ui->ftbBox->setText(s->get("FTBRoot").toString());
+
 	// Folders
 	ui->instDirTextBox->setText(s->get("InstanceDir").toString());
 	ui->modsDirTextBox->setText(s->get("CentralModsDir").toString());
 	ui->lwjglDirTextBox->setText(s->get("LWJGLDir").toString());
+	ui->iconsDirTextBox->setText(s->get("IconsDir").toString());
+
+	// Editors
+	ui->jsonEditorTextBox->setText(s->get("JsonEditor").toString());
 
 	// Console
 	ui->showConsoleCheck->setChecked(s->get("ShowConsole").toBool());
@@ -202,9 +313,6 @@ void SettingsDialog::loadSettings(SettingsObject *s)
 	ui->windowWidthSpinBox->setValue(s->get("MinecraftWinWidth").toInt());
 	ui->windowHeightSpinBox->setValue(s->get("MinecraftWinHeight").toInt());
 
-	// Auto Login
-	ui->autoLoginCheckBox->setChecked(s->get("AutoLogin").toBool());
-
 	// Memory
 	ui->minMemSpinBox->setValue(s->get("MinMemAlloc").toInt());
 	ui->maxMemSpinBox->setValue(s->get("MaxMemAlloc").toInt());
diff --git a/gui/dialogs/SettingsDialog.h b/gui/dialogs/SettingsDialog.h
index 0cb8fa38..11fdb696 100644
--- a/gui/dialogs/SettingsDialog.h
+++ b/gui/dialogs/SettingsDialog.h
@@ -41,20 +41,32 @@ public:
 	void loadSettings(SettingsObject *s);
 
 protected:
-	virtual void showEvent(QShowEvent *);
+	virtual void showEvent(QShowEvent *ev);
+	virtual void closeEvent(QCloseEvent *ev);
 
 private
 slots:
+	void on_ftbLauncherBrowseBtn_clicked();
+
+	void on_ftbBrowseBtn_clicked();
+
 	void on_instDirBrowseBtn_clicked();
 
 	void on_modsDirBrowseBtn_clicked();
 
 	void on_lwjglDirBrowseBtn_clicked();
 
+
+	void on_jsonEditorBrowseBtn_clicked();
+
+	void on_iconsDirBrowseBtn_clicked();
+
 	void on_maximizedCheckBox_clicked(bool checked);
 
 	void on_buttonBox_accepted();
 
+	void on_buttonBox_rejected();
+
 	void on_javaDetectBtn_clicked();
 
 	void on_javaTestBtn_clicked();
diff --git a/gui/dialogs/SettingsDialog.ui b/gui/dialogs/SettingsDialog.ui
index 0dbc8def..dbc8ca88 100644
--- a/gui/dialogs/SettingsDialog.ui
+++ b/gui/dialogs/SettingsDialog.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>526</width>
-    <height>599</height>
+    <height>628</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -39,7 +39,7 @@
       <attribute name="title">
        <string>General</string>
       </attribute>
-      <layout class="QVBoxLayout" name="generalTabLayout">
+      <layout class="QVBoxLayout" name="verticalLayout">
        <item>
         <widget class="QGroupBox" name="sortingModeBox">
          <property name="enabled">
@@ -96,6 +96,93 @@
         </widget>
        </item>
        <item>
+        <widget class="QGroupBox" name="groupBox">
+         <property name="title">
+          <string>FTB</string>
+         </property>
+         <layout class="QGridLayout" name="gridLayout">
+          <item row="2" column="2">
+           <widget class="QPushButton" name="ftbLauncherBrowseBtn">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="maximumSize">
+             <size>
+              <width>28</width>
+              <height>16777215</height>
+             </size>
+            </property>
+            <property name="focusPolicy">
+             <enum>Qt::TabFocus</enum>
+            </property>
+            <property name="text">
+             <string>...</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="0">
+           <widget class="QLabel" name="label">
+            <property name="text">
+             <string>Launcher:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="1">
+           <widget class="QLineEdit" name="ftbLauncherBox">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0" colspan="2">
+           <widget class="QCheckBox" name="trackFtbBox">
+            <property name="text">
+             <string>Track FTB instances</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="1">
+           <widget class="QLineEdit" name="ftbBox"/>
+          </item>
+          <item row="3" column="2">
+           <widget class="QPushButton" name="ftbBrowseBtn">
+            <property name="enabled">
+             <bool>true</bool>
+            </property>
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="maximumSize">
+             <size>
+              <width>28</width>
+              <height>16777215</height>
+             </size>
+            </property>
+            <property name="text">
+             <string>...</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="0">
+           <widget class="QLabel" name="label_2">
+            <property name="text">
+             <string>Files:</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
         <widget class="QGroupBox" name="foldersBox">
          <property name="title">
           <string>Folders</string>
@@ -128,6 +215,9 @@
           <item row="1" column="1">
            <widget class="QLineEdit" name="modsDirTextBox"/>
           </item>
+          <item row="2" column="1">
+           <widget class="QLineEdit" name="lwjglDirTextBox"/>
+          </item>
           <item row="1" column="2">
            <widget class="QToolButton" name="modsDirBrowseBtn">
             <property name="text">
@@ -142,9 +232,6 @@
             </property>
            </widget>
           </item>
-          <item row="2" column="1">
-           <widget class="QLineEdit" name="lwjglDirTextBox"/>
-          </item>
           <item row="2" column="2">
            <widget class="QToolButton" name="lwjglDirBrowseBtn">
             <property name="text">
@@ -152,6 +239,49 @@
             </property>
            </widget>
           </item>
+          <item row="3" column="1">
+           <widget class="QLineEdit" name="iconsDirTextBox"/>
+          </item>
+          <item row="3" column="0">
+           <widget class="QLabel" name="labelIconsDir">
+            <property name="text">
+             <string>Icons:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="2">
+           <widget class="QToolButton" name="iconsDirBrowseBtn">
+            <property name="text">
+             <string>...</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QGroupBox" name="editorsBox">
+         <property name="title">
+          <string>External Editors (leave empty for system default)</string>
+         </property>
+         <layout class="QGridLayout" name="foldersBoxLayout_2">
+          <item row="0" column="1">
+           <widget class="QLineEdit" name="jsonEditorTextBox"/>
+          </item>
+          <item row="0" column="0">
+           <widget class="QLabel" name="labelJsonEditor">
+            <property name="text">
+             <string>JSON Editor:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="2">
+           <widget class="QToolButton" name="jsonEditorBrowseBtn">
+            <property name="text">
+             <string>...</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </widget>
        </item>
@@ -262,22 +392,6 @@
         </widget>
        </item>
        <item>
-        <widget class="QGroupBox" name="accountSettingsBox">
-         <property name="title">
-          <string>Account Settings</string>
-         </property>
-         <layout class="QVBoxLayout" name="verticalLayout">
-          <item>
-           <widget class="QCheckBox" name="autoLoginCheckBox">
-            <property name="text">
-             <string>Login automatically when an instance icon is double clicked?</string>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item>
         <spacer name="verticalSpacerMinecraft">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
@@ -394,25 +508,6 @@
             </property>
            </widget>
           </item>
-          <item row="3" column="0">
-           <widget class="QLabel" name="labelJVMArgs">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
-              <horstretch>0</horstretch>
-              <verstretch>0</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="text">
-             <string>JVM arguments:</string>
-            </property>
-           </widget>
-          </item>
-          <item row="0" column="1" colspan="5">
-           <widget class="QLineEdit" name="javaPathTextBox"/>
-          </item>
-          <item row="3" column="1" colspan="5">
-           <widget class="QLineEdit" name="jvmArgsTextBox"/>
-          </item>
           <item row="1" column="1">
            <widget class="QPushButton" name="javaDetectBtn">
             <property name="sizePolicy">
@@ -426,7 +521,7 @@
             </property>
            </widget>
           </item>
-          <item row="1" column="4" colspan="2">
+          <item row="1" column="2">
            <widget class="QPushButton" name="javaTestBtn">
             <property name="sizePolicy">
              <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
@@ -439,19 +534,48 @@
             </property>
            </widget>
           </item>
-          <item row="1" column="2" colspan="2">
-           <widget class="QPushButton" name="javaBrowseBtn">
+          <item row="2" column="0">
+           <widget class="QLabel" name="labelJVMArgs">
             <property name="sizePolicy">
-             <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+             <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
               <horstretch>0</horstretch>
               <verstretch>0</verstretch>
              </sizepolicy>
             </property>
             <property name="text">
-             <string>Browse...</string>
+             <string>JVM arguments:</string>
             </property>
            </widget>
           </item>
+          <item row="0" column="1" colspan="2">
+           <layout class="QHBoxLayout" name="horizontalLayout">
+            <item>
+             <widget class="QLineEdit" name="javaPathTextBox"/>
+            </item>
+            <item>
+             <widget class="QPushButton" name="javaBrowseBtn">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="maximumSize">
+               <size>
+                <width>28</width>
+                <height>16777215</height>
+               </size>
+              </property>
+              <property name="text">
+               <string>...</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
+          <item row="2" column="1" colspan="2">
+           <widget class="QLineEdit" name="jvmArgsTextBox"/>
+          </item>
          </layout>
         </widget>
        </item>
@@ -520,7 +644,7 @@
   </layout>
  </widget>
  <tabstops>
-  <tabstop>settingsTabs</tabstop>
+  <tabstop>settingsTab</tabstop>
   <tabstop>buttonBox</tabstop>
   <tabstop>sortLastLaunchedBtn</tabstop>
   <tabstop>sortByNameBtn</tabstop>
diff --git a/gui/widgets/MCModInfoFrame.cpp b/gui/widgets/MCModInfoFrame.cpp
index ad167bc9..abcea6c6 100644
--- a/gui/widgets/MCModInfoFrame.cpp
+++ b/gui/widgets/MCModInfoFrame.cpp
@@ -30,7 +30,7 @@ void MCModInfoFrame::updateWithMod(Mod &m)
 
 	QString text = "";
 	QString name = "";
-	if(m.name().isEmpty()) name = m.id();
+	if(m.name().isEmpty()) name = m.mmc_id();
 	else name = m.name();
 
 	if(m.homeurl().isEmpty()) text = name;
diff --git a/gui/widgets/ModListView.cpp b/gui/widgets/ModListView.cpp
index 838af75e..9d5950c3 100644
--- a/gui/widgets/ModListView.cpp
+++ b/gui/widgets/ModListView.cpp
@@ -44,8 +44,9 @@ void ModListView::setModel ( QAbstractItemModel* model )
 	QTreeView::setModel ( model );
 	auto head = header();
 	head->setStretchLastSection(false);
-	head->setSectionResizeMode(0, QHeaderView::Stretch);
-	for(int i = 1; i < head->count(); i++)
+	head->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+	head->setSectionResizeMode(1, QHeaderView::Stretch);
+	for(int i = 2; i < head->count(); i++)
 		head->setSectionResizeMode(i, QHeaderView::ResizeToContents);
 	dropIndicatorPosition();
 }
diff --git a/logger/QsLogDest.cpp b/logger/QsLogDest.cpp
index 2fd29b23..4a47060e 100644
--- a/logger/QsLogDest.cpp
+++ b/logger/QsLogDest.cpp
@@ -77,6 +77,15 @@ void DebugOutputDestination::write(const QString &message)
 	QsDebugOutput::output(message);
 }
 
+class QDebugDestination : public Destination
+{
+public:
+	virtual void write(const QString &message)
+	{
+		qDebug() << message;
+	};
+};
+
 DestinationPtr DestinationFactory::MakeFileDestination(const QString &filePath)
 {
 	return DestinationPtr(new FileDestination(filePath));
@@ -87,4 +96,9 @@ DestinationPtr DestinationFactory::MakeDebugOutputDestination()
 	return DestinationPtr(new DebugOutputDestination);
 }
 
+DestinationPtr DestinationFactory::MakeQDebugDestination()
+{
+	return DestinationPtr(new QDebugDestination);
+}
+
 } // end namespace
diff --git a/logger/QsLogDest.h b/logger/QsLogDest.h
index e7fcc045..a8000022 100644
--- a/logger/QsLogDest.h
+++ b/logger/QsLogDest.h
@@ -47,6 +47,7 @@ class DestinationFactory
 public:
 	static DestinationPtr MakeFileDestination(const QString &filePath);
 	static DestinationPtr MakeDebugOutputDestination();
+	static DestinationPtr MakeQDebugDestination();
 };
 
 } // end namespace
diff --git a/logic/BaseInstance.cpp b/logic/BaseInstance.cpp
index 6f8222b7..ac66a8d5 100644
--- a/logic/BaseInstance.cpp
+++ b/logic/BaseInstance.cpp
@@ -27,6 +27,7 @@
 
 #include "pathutils.h"
 #include "lists/MinecraftVersionList.h"
+#include "logic/icons/IconList.h"
 
 BaseInstance::BaseInstance(BaseInstancePrivate *d_in, const QString &rootDir,
 						   SettingsObject *settings_obj, QObject *parent)
@@ -36,10 +37,11 @@ BaseInstance::BaseInstance(BaseInstancePrivate *d_in, const QString &rootDir,
 	d->m_settings = settings_obj;
 	d->m_rootDir = rootDir;
 
-	settings().registerSetting(new Setting("name", "Unnamed Instance"));
-	settings().registerSetting(new Setting("iconKey", "default"));
-	settings().registerSetting(new Setting("notes", ""));
-	settings().registerSetting(new Setting("lastLaunchTime", 0));
+	settings().registerSetting("name", "Unnamed Instance");
+	settings().registerSetting("iconKey", "default");
+	connect(MMC->icons().get(), SIGNAL(iconUpdated(QString)), SLOT(iconUpdated(QString)));
+	settings().registerSetting("notes", "");
+	settings().registerSetting("lastLaunchTime", 0);
 
 	/*
 	 * custom base jar has no default. it is determined in code... see the accessor methods for
@@ -48,54 +50,45 @@ BaseInstance::BaseInstance(BaseInstancePrivate *d_in, const QString &rootDir,
 	 * for instances that DO NOT have the CustomBaseJar setting (legacy instances),
 	 * [.]minecraft/bin/mcbackup.jar is the default base jar
 	 */
-	settings().registerSetting(new Setting("UseCustomBaseJar", true));
-	settings().registerSetting(new Setting("CustomBaseJar", ""));
+	settings().registerSetting("UseCustomBaseJar", true);
+	settings().registerSetting("CustomBaseJar", "");
 
 	auto globalSettings = MMC->settings();
 
 	// Java Settings
-	settings().registerSetting(new Setting("OverrideJava", false));
-	settings().registerSetting(
-		new OverrideSetting("JavaPath", globalSettings->getSetting("JavaPath")));
-	settings().registerSetting(
-		new OverrideSetting("JvmArgs", globalSettings->getSetting("JvmArgs")));
+	settings().registerSetting("OverrideJava", false);
+	settings().registerOverride(globalSettings->getSetting("JavaPath"));
+	settings().registerOverride(globalSettings->getSetting("JvmArgs"));
 
 	// Custom Commands
-	settings().registerSetting(new Setting("OverrideCommands", false));
-	settings().registerSetting(new OverrideSetting(
-		"PreLaunchCommand", globalSettings->getSetting("PreLaunchCommand")));
-	settings().registerSetting(
-		new OverrideSetting("PostExitCommand", globalSettings->getSetting("PostExitCommand")));
+	settings().registerSetting({"OverrideCommands","OverrideLaunchCmd"}, false);
+	settings().registerOverride(globalSettings->getSetting("PreLaunchCommand"));
+	settings().registerOverride(globalSettings->getSetting("PostExitCommand"));
 
 	// Window Size
-	settings().registerSetting(new Setting("OverrideWindow", false));
-	settings().registerSetting(
-		new OverrideSetting("LaunchMaximized", globalSettings->getSetting("LaunchMaximized")));
-	settings().registerSetting(new OverrideSetting(
-		"MinecraftWinWidth", globalSettings->getSetting("MinecraftWinWidth")));
-	settings().registerSetting(new OverrideSetting(
-		"MinecraftWinHeight", globalSettings->getSetting("MinecraftWinHeight")));
+	settings().registerSetting("OverrideWindow", false);
+	settings().registerOverride(globalSettings->getSetting("LaunchMaximized"));
+	settings().registerOverride(globalSettings->getSetting("MinecraftWinWidth"));
+	settings().registerOverride(globalSettings->getSetting("MinecraftWinHeight"));
 
 	// Memory
-	settings().registerSetting(new Setting("OverrideMemory", false));
-	settings().registerSetting(
-		new OverrideSetting("MinMemAlloc", globalSettings->getSetting("MinMemAlloc")));
-	settings().registerSetting(
-		new OverrideSetting("MaxMemAlloc", globalSettings->getSetting("MaxMemAlloc")));
-	settings().registerSetting(
-		new OverrideSetting("PermGen", globalSettings->getSetting("PermGen")));
-
-	// Auto login
-	settings().registerSetting(new Setting("OverrideLogin", false));
-	settings().registerSetting(
-		new OverrideSetting("AutoLogin", globalSettings->getSetting("AutoLogin")));
+	settings().registerSetting("OverrideMemory", false);
+	settings().registerOverride(globalSettings->getSetting("MinMemAlloc"));
+	settings().registerOverride(globalSettings->getSetting("MaxMemAlloc"));
+	settings().registerOverride(globalSettings->getSetting("PermGen"));
 
 	// Console
-	settings().registerSetting(new Setting("OverrideConsole", false));
-	settings().registerSetting(
-		new OverrideSetting("ShowConsole", globalSettings->getSetting("ShowConsole")));
-	settings().registerSetting(new OverrideSetting(
-		"AutoCloseConsole", globalSettings->getSetting("AutoCloseConsole")));
+	settings().registerSetting("OverrideConsole", false);
+	settings().registerOverride(globalSettings->getSetting("ShowConsole"));
+	settings().registerOverride(globalSettings->getSetting("AutoCloseConsole"));
+}
+
+void BaseInstance::iconUpdated(QString key)
+{
+	if(iconKey() == key)
+	{
+		emit propertiesChanged(this);
+	}
 }
 
 void BaseInstance::nuke()
diff --git a/logic/BaseInstance.h b/logic/BaseInstance.h
index 5f426676..01d6dc7d 100644
--- a/logic/BaseInstance.h
+++ b/logic/BaseInstance.h
@@ -184,6 +184,9 @@ signals:
 	 */
 	void nuked(BaseInstance *inst);
 
+protected slots:
+	void iconUpdated(QString key);
+
 protected:
 	std::shared_ptr<BaseInstancePrivate> inst_d;
 };
diff --git a/logic/InstanceFactory.cpp b/logic/InstanceFactory.cpp
index 66b271d0..1f1a5879 100644
--- a/logic/InstanceFactory.cpp
+++ b/logic/InstanceFactory.cpp
@@ -20,7 +20,9 @@
 
 #include "BaseInstance.h"
 #include "LegacyInstance.h"
+#include "LegacyFTBInstance.h"
 #include "OneSixInstance.h"
+#include "OneSixFTBInstance.h"
 #include "NostalgiaInstance.h"
 #include "BaseVersion.h"
 #include "MinecraftVersion.h"
@@ -43,7 +45,7 @@ InstanceFactory::InstLoadError InstanceFactory::loadInstance(BaseInstance *&inst
 {
 	auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
 
-	m_settings->registerSetting(new Setting("InstanceType", "Legacy"));
+	m_settings->registerSetting("InstanceType", "Legacy");
 
 	QString inst_type = m_settings->get("InstanceType").toString();
 
@@ -60,6 +62,14 @@ InstanceFactory::InstLoadError InstanceFactory::loadInstance(BaseInstance *&inst
 	{
 		inst = new NostalgiaInstance(instDir, m_settings, this);
 	}
+	else if (inst_type == "LegacyFTB")
+	{
+		inst = new LegacyFTBInstance(instDir, m_settings, this);
+	}
+	else if (inst_type == "OneSixFTB")
+	{
+		inst = new OneSixFTBInstance(instDir, m_settings, this);
+	}
 	else
 	{
 		return InstanceFactory::UnknownLoadError;
@@ -69,7 +79,8 @@ InstanceFactory::InstLoadError InstanceFactory::loadInstance(BaseInstance *&inst
 
 InstanceFactory::InstCreateError InstanceFactory::createInstance(BaseInstance *&inst,
 																 BaseVersionPtr version,
-																 const QString &instDir)
+																 const QString &instDir,
+																 const InstType type)
 {
 	QDir rootDir(instDir);
 
@@ -83,34 +94,65 @@ InstanceFactory::InstCreateError InstanceFactory::createInstance(BaseInstance *&
 		return InstanceFactory::NoSuchVersion;
 
 	auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
-	m_settings->registerSetting(new Setting("InstanceType", "Legacy"));
+	m_settings->registerSetting("InstanceType", "Legacy");
 
-	switch (mcVer->type)
+	if (type == NormalInst)
 	{
-	case MinecraftVersion::Legacy:
-		m_settings->set("InstanceType", "Legacy");
-		inst = new LegacyInstance(instDir, m_settings, this);
-		inst->setIntendedVersionId(version->descriptor());
-		inst->setShouldUseCustomBaseJar(false);
-		break;
-	case MinecraftVersion::OneSix:
-		m_settings->set("InstanceType", "OneSix");
-		inst = new OneSixInstance(instDir, m_settings, this);
-		inst->setIntendedVersionId(version->descriptor());
-		inst->setShouldUseCustomBaseJar(false);
-		break;
-	case MinecraftVersion::Nostalgia:
-		m_settings->set("InstanceType", "Nostalgia");
-		inst = new NostalgiaInstance(instDir, m_settings, this);
-		inst->setIntendedVersionId(version->descriptor());
-		inst->setShouldUseCustomBaseJar(false);
-		break;
-	default:
+		switch (mcVer->type)
+		{
+		case MinecraftVersion::Legacy:
+			m_settings->set("InstanceType", "Legacy");
+			inst = new LegacyInstance(instDir, m_settings, this);
+			inst->setIntendedVersionId(version->descriptor());
+			inst->setShouldUseCustomBaseJar(false);
+			break;
+		case MinecraftVersion::OneSix:
+			m_settings->set("InstanceType", "OneSix");
+			inst = new OneSixInstance(instDir, m_settings, this);
+			inst->setIntendedVersionId(version->descriptor());
+			inst->setShouldUseCustomBaseJar(false);
+			break;
+		case MinecraftVersion::Nostalgia:
+			m_settings->set("InstanceType", "Nostalgia");
+			inst = new NostalgiaInstance(instDir, m_settings, this);
+			inst->setIntendedVersionId(version->descriptor());
+			inst->setShouldUseCustomBaseJar(false);
+			break;
+		default:
+		{
+			delete m_settings;
+			return InstanceFactory::NoSuchVersion;
+		}
+		}
+	}
+	else if (type == FTBInstance)
+	{
+		switch (mcVer->type)
+		{
+		case MinecraftVersion::Legacy:
+			m_settings->set("InstanceType", "LegacyFTB");
+			inst = new LegacyFTBInstance(instDir, m_settings, this);
+			inst->setIntendedVersionId(version->descriptor());
+			inst->setShouldUseCustomBaseJar(false);
+			break;
+		case MinecraftVersion::OneSix:
+			m_settings->set("InstanceType", "OneSixFTB");
+			inst = new OneSixFTBInstance(instDir, m_settings, this);
+			inst->setIntendedVersionId(version->descriptor());
+			inst->setShouldUseCustomBaseJar(false);
+			break;
+		default:
+		{
+			delete m_settings;
+			return InstanceFactory::NoSuchVersion;
+		}
+		}
+	}
+	else
 	{
 		delete m_settings;
 		return InstanceFactory::NoSuchVersion;
 	}
-	}
 
 	// FIXME: really, how do you even know?
 	return InstanceFactory::NoCreateError;
@@ -128,7 +170,17 @@ InstanceFactory::InstCreateError InstanceFactory::copyInstance(BaseInstance *&ne
 		rootDir.removeRecursively();
 		return InstanceFactory::CantCreateDir;
 	}
+	auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
+	m_settings->registerSetting("InstanceType", "Legacy");
+	QString inst_type = m_settings->get("InstanceType").toString();
+
+	if(inst_type == "OneSixFTB")
+		m_settings->set("InstanceType", "OneSix");
+	if(inst_type == "LegacyFTB")
+		m_settings->set("InstanceType", "Legacy");
+
 	auto error = loadInstance(newInstance, instDir);
+
 	switch (error)
 	{
 	case NoLoadError:
diff --git a/logic/InstanceFactory.h b/logic/InstanceFactory.h
index 01e5af7e..5ff4c7ec 100644
--- a/logic/InstanceFactory.h
+++ b/logic/InstanceFactory.h
@@ -55,18 +55,25 @@ public:
 		CantCreateDir
 	};
 
+	enum InstType
+	{
+		NormalInst,
+		FTBInstance
+	};
+
 	/*!
 	 * \brief Creates a stub instance
 	 *
 	 * \param inst Pointer to store the created instance in.
-	 * \param inst Game version to use for the instance
+	 * \param version Game version to use for the instance
 	 * \param instDir The new instance's directory.
+	 * \param type The type of instance to create
 	 * \return An InstCreateError error code.
 	 * - InstExists if the given instance directory is already an instance.
 	 * - CantCreateDir if the given instance directory cannot be created.
 	 */
 	InstCreateError createInstance(BaseInstance *&inst, BaseVersionPtr version,
-								   const QString &instDir);
+								   const QString &instDir, const InstType type = NormalInst);
 
 	/*!
 	 * \brief Creates a copy of an existing instance with a new name
diff --git a/logic/JavaChecker.cpp b/logic/JavaChecker.cpp
index 2b94fbb6..113974ff 100644
--- a/logic/JavaChecker.cpp
+++ b/logic/JavaChecker.cpp
@@ -99,6 +99,7 @@ void JavaChecker::error(QProcess::ProcessError err)
 	if(err == QProcess::FailedToStart)
 	{
 		killTimer.stop();
+		checkerJar.remove();
 
 		JavaCheckResult result;
 		{
@@ -116,6 +117,5 @@ void JavaChecker::timeout()
 	if(process)
 	{
 		process->kill();
-		process.reset();
 	}
 }
diff --git a/logic/JavaUtils.cpp b/logic/JavaUtils.cpp
index e1b3bc64..cf47df6f 100644
--- a/logic/JavaUtils.cpp
+++ b/logic/JavaUtils.cpp
@@ -177,10 +177,10 @@ QList<QString> JavaUtils::FindJavaPaths()
 #elif OSX
 QList<QString> JavaUtils::FindJavaPaths()
 {
-	QLOG_INFO() << "OS X Java detection incomplete - defaulting to \"java\"";
-
 	QList<QString> javas;
 	javas.append(this->GetDefaultJava()->path);
+	javas.append("/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java");
+	javas.append("/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java");
 
 	return javas;
 }
diff --git a/logic/LegacyFTBInstance.cpp b/logic/LegacyFTBInstance.cpp
new file mode 100644
index 00000000..84d5a900
--- /dev/null
+++ b/logic/LegacyFTBInstance.cpp
@@ -0,0 +1,16 @@
+#include "LegacyFTBInstance.h"
+
+LegacyFTBInstance::LegacyFTBInstance(const QString &rootDir, SettingsObject *settings, QObject *parent) :
+	LegacyInstance(rootDir, settings, parent)
+{
+}
+
+QString LegacyFTBInstance::getStatusbarDescription()
+{
+	return "Legacy FTB: " + intendedVersionId();
+}
+
+bool LegacyFTBInstance::menuActionEnabled(QString action_name) const
+{
+	return false;
+}
diff --git a/logic/LegacyFTBInstance.h b/logic/LegacyFTBInstance.h
new file mode 100644
index 00000000..2ae72797
--- /dev/null
+++ b/logic/LegacyFTBInstance.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include "LegacyInstance.h"
+
+class LegacyFTBInstance : public LegacyInstance
+{
+	Q_OBJECT
+public:
+	explicit LegacyFTBInstance(const QString &rootDir, SettingsObject *settings,
+							   QObject *parent = 0);
+	virtual QString getStatusbarDescription();
+	virtual bool menuActionEnabled(QString action_name) const;
+};
diff --git a/logic/LegacyInstance.cpp b/logic/LegacyInstance.cpp
index fef27bcd..0bc0961e 100644
--- a/logic/LegacyInstance.cpp
+++ b/logic/LegacyInstance.cpp
@@ -27,7 +27,7 @@
 
 #include "logic/MinecraftProcess.h"
 #include "logic/LegacyUpdate.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
 
 #include "gui/dialogs/LegacyModEditDialog.h"
 
@@ -37,11 +37,11 @@ LegacyInstance::LegacyInstance(const QString &rootDir, SettingsObject *settings,
 							   QObject *parent)
 	: BaseInstance(new LegacyInstancePrivate(), rootDir, settings, parent)
 {
-	settings->registerSetting(new Setting("NeedsRebuild", true));
-	settings->registerSetting(new Setting("ShouldUpdate", false));
-	settings->registerSetting(new Setting("JarVersion", "Unknown"));
-	settings->registerSetting(new Setting("LwjglVersion", "2.9.0"));
-	settings->registerSetting(new Setting("IntendedJarVersion", ""));
+	settings->registerSetting("NeedsRebuild", true);
+	settings->registerSetting("ShouldUpdate", false);
+	settings->registerSetting("JarVersion", "Unknown");
+	settings->registerSetting("LwjglVersion", "2.9.0");
+	settings->registerSetting("IntendedJarVersion", "");
 }
 
 std::shared_ptr<Task> LegacyInstance::doUpdate(bool only_prepare)
@@ -150,6 +150,7 @@ std::shared_ptr<ModList> LegacyInstance::jarModList()
 
 void LegacyInstance::jarModsChanged()
 {
+	QLOG_INFO() << "Jar mods of instance " << name() << " have changed. Jar will be rebuilt.";
 	setShouldRebuild(true);
 }
 
diff --git a/logic/LegacyUpdate.cpp b/logic/LegacyUpdate.cpp
index e71b270e..cb3598a7 100644
--- a/logic/LegacyUpdate.cpp
+++ b/logic/LegacyUpdate.cpp
@@ -76,7 +76,7 @@ void LegacyUpdate::lwjglStart()
 		return;
 	}
 
-	setStatus("Downloading new LWJGL.");
+	setStatus(tr("Downloading new LWJGL..."));
 	auto version = list->getVersion(lwjglVersion);
 	if (!version)
 	{
@@ -144,7 +144,7 @@ void LegacyUpdate::lwjglFinished(QNetworkReply *reply)
 	saveMe.open(QIODevice::WriteOnly);
 	saveMe.write(m_reply->readAll());
 	saveMe.close();
-	setStatus("Installing new LWJGL...");
+	setStatus(tr("Installing new LWJGL..."));
 	extractLwjgl();
 	jarStart();
 }
@@ -220,7 +220,7 @@ void LegacyUpdate::extractLwjgl()
 		// Now if destFileName is still empty, go to the next file.
 		if (!destFileName.isEmpty())
 		{
-			setStatus("Installing new LWJGL - Extracting " + name);
+			setStatus(tr("Installing new LWJGL - extracting ") + name + "...");
 			QFile output(destFileName);
 			output.open(QIODevice::WriteOnly);
 			output.write(file.readAll()); // FIXME: wste of memory!?
@@ -250,7 +250,7 @@ void LegacyUpdate::jarStart()
 		return;
 	}
 
-	setStatus("Checking for jar updates...");
+	setStatus(tr("Checking for jar updates..."));
 	// Make directories
 	QDir binDir(inst->binDir());
 	if (!binDir.exists() && !binDir.mkpath("."))
@@ -260,7 +260,7 @@ void LegacyUpdate::jarStart()
 	}
 
 	// Build a list of URLs that will need to be downloaded.
-	setStatus("Downloading new minecraft.jar");
+	setStatus(tr("Downloading new minecraft.jar ..."));
 
 	QString version_id = inst->intendedVersionId();
 	QString localPath = version_id + "/" + version_id + ".jar";
@@ -294,7 +294,7 @@ void LegacyUpdate::jarFailed()
 bool LegacyUpdate::MergeZipFiles(QuaZip *into, QFileInfo from, QSet<QString> &contained,
 								 MetainfAction metainf)
 {
-	setStatus("Installing mods - Adding " + from.fileName());
+	setStatus(tr("Installing mods: Adding ") + from.fileName() + " ...");
 
 	QuaZip modZip(from.filePath());
 	modZip.open(QuaZip::mdUnzip);
@@ -380,7 +380,7 @@ void LegacyUpdate::ModTheJar()
 			return;
 		}
 
-		setStatus("Installing mods - backing up minecraft.jar...");
+		setStatus(tr("Installing mods: Backing up minecraft.jar ..."));
 		if (!baseJar.exists() && !QFile::copy(runnableJar.filePath(), baseJar.filePath()))
 		{
 			emitFailed("It seems both the active and base jar are gone. A fresh base jar will "
@@ -405,7 +405,7 @@ void LegacyUpdate::ModTheJar()
 	}
 
 	// TaskStep(); // STEP 1
-	setStatus("Installing mods - Opening minecraft.jar");
+	setStatus(tr("Installing mods: Opening minecraft.jar ..."));
 
 	QuaZip zipOut(runnableJar.filePath());
 	if (!zipOut.open(QuaZip::mdCreate))
@@ -419,10 +419,15 @@ void LegacyUpdate::ModTheJar()
 	QSet<QString> addedFiles;
 
 	// Modify the jar
-	setStatus("Installing mods - Adding mod files...");
+	setStatus(tr("Installing mods: Adding mod files..."));
 	for (int i = modList->size() - 1; i >= 0; i--)
 	{
 		auto &mod = modList->operator[](i);
+
+		// do not merge disabled mods.
+		if(!mod.enabled())
+			continue;
+
 		if (mod.type() == Mod::MOD_ZIPFILE)
 		{
 			if (!MergeZipFiles(&zipOut, mod.filename(), addedFiles, LegacyUpdate::KeepMetainf))
diff --git a/logic/LiteLoaderInstaller.cpp b/logic/LiteLoaderInstaller.cpp
new file mode 100644
index 00000000..07fffff3
--- /dev/null
+++ b/logic/LiteLoaderInstaller.cpp
@@ -0,0 +1,102 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "LiteLoaderInstaller.h"
+
+#include "OneSixVersion.h"
+#include "OneSixLibrary.h"
+
+QMap<QString, QString> LiteLoaderInstaller::m_launcherWrapperVersionMapping;
+
+LiteLoaderInstaller::LiteLoaderInstaller(const QString &mcVersion) : m_mcVersion(mcVersion)
+{
+	if (m_launcherWrapperVersionMapping.isEmpty())
+	{
+		m_launcherWrapperVersionMapping["1.6.2"] = "1.3";
+		m_launcherWrapperVersionMapping["1.6.4"] = "1.8";
+		//m_launcherWrapperVersionMapping["1.7.2"] = "1.8";
+		//m_launcherWrapperVersionMapping["1.7.4"] = "1.8";
+	}
+}
+
+bool LiteLoaderInstaller::canApply() const
+{
+	return m_launcherWrapperVersionMapping.contains(m_mcVersion);
+}
+
+bool LiteLoaderInstaller::apply(std::shared_ptr<OneSixVersion> to)
+{
+	to->externalUpdateStart();
+
+	applyLaunchwrapper(to);
+	applyLiteLoader(to);
+
+	to->mainClass = "net.minecraft.launchwrapper.Launch";
+	if (!to->minecraftArguments.contains(
+			 " --tweakClass com.mumfrey.liteloader.launch.LiteLoaderTweaker"))
+	{
+		to->minecraftArguments.append(
+			" --tweakClass com.mumfrey.liteloader.launch.LiteLoaderTweaker");
+	}
+
+	to->externalUpdateFinish();
+	return to->toOriginalFile();
+}
+
+void LiteLoaderInstaller::applyLaunchwrapper(std::shared_ptr<OneSixVersion> to)
+{
+	const QString intendedVersion = m_launcherWrapperVersionMapping[m_mcVersion];
+
+	QMutableListIterator<std::shared_ptr<OneSixLibrary>> it(to->libraries);
+	while (it.hasNext())
+	{
+		it.next();
+		if (it.value()->rawName().startsWith("net.minecraft:launchwrapper:"))
+		{
+			if (it.value()->version() >= intendedVersion)
+			{
+				return;
+			}
+			else
+			{
+				it.remove();
+			}
+		}
+	}
+
+	std::shared_ptr<OneSixLibrary> lib(new OneSixLibrary(
+		"net.minecraft:launchwrapper:" + m_launcherWrapperVersionMapping[m_mcVersion]));
+	lib->finalize();
+	to->libraries.prepend(lib);
+}
+
+void LiteLoaderInstaller::applyLiteLoader(std::shared_ptr<OneSixVersion> to)
+{
+	QMutableListIterator<std::shared_ptr<OneSixLibrary>> it(to->libraries);
+	while (it.hasNext())
+	{
+		it.next();
+		if (it.value()->rawName().startsWith("com.mumfrey:liteloader:"))
+		{
+			it.remove();
+		}
+	}
+
+	std::shared_ptr<OneSixLibrary> lib(
+		new OneSixLibrary("com.mumfrey:liteloader:" + m_mcVersion));
+	lib->setBaseUrl("http://dl.liteloader.com/versions/");
+	lib->finalize();
+	to->libraries.prepend(lib);
+}
diff --git a/depends/settings/include/basicsettingsobject.h b/logic/LiteLoaderInstaller.h
index 387a3646..44b306d6 100644
--- a/depends/settings/include/basicsettingsobject.h
+++ b/logic/LiteLoaderInstaller.h
@@ -14,29 +14,26 @@
  */
 
 #pragma once
+#include <QString>
+#include <QMap>
+#include <memory>
 
-#include <QObject>
-#include <QSettings>
+class OneSixVersion;
 
-#include "settingsobject.h"
-
-#include "libsettings_config.h"
-
-/*!
- * \brief A settings object that stores its settings in a QSettings object.
- */
-class LIBSETTINGS_EXPORT BasicSettingsObject : public SettingsObject
+class LiteLoaderInstaller
 {
-	Q_OBJECT
 public:
-	explicit BasicSettingsObject(QObject *parent = 0);
+	LiteLoaderInstaller(const QString &mcVersion);
+
+	bool canApply() const;
+
+	bool apply(std::shared_ptr<OneSixVersion> to);
 
-protected
-slots:
-	virtual void changeSetting(const Setting &setting, QVariant value);
+private:
+	QString m_mcVersion;
 
-protected:
-	virtual QVariant retrieveValue(const Setting &setting);
+	void applyLaunchwrapper(std::shared_ptr<OneSixVersion> to);
+	void applyLiteLoader(std::shared_ptr<OneSixVersion> to);
 
-	QSettings config;
+	static QMap<QString, QString> m_launcherWrapperVersionMapping;
 };
diff --git a/logic/Mod.cpp b/logic/Mod.cpp
index cff9467e..6732446d 100644
--- a/logic/Mod.cpp
+++ b/logic/Mod.cpp
@@ -35,20 +35,45 @@ Mod::Mod(const QFileInfo &file)
 void Mod::repath(const QFileInfo &file)
 {
 	m_file = file;
-	m_name = file.completeBaseName();
-	m_id = file.fileName();
+	QString name_base = file.fileName();
 
 	m_type = Mod::MOD_UNKNOWN;
+
 	if (m_file.isDir())
+	{
 		m_type = MOD_FOLDER;
+		m_name = name_base;
+		m_mmc_id = name_base;
+	}
 	else if (m_file.isFile())
 	{
-		QString ext = m_file.suffix().toLower();
-		if (ext == "zip" || ext == "jar")
+		if (name_base.endsWith(".disabled"))
+		{
+			m_enabled = false;
+			name_base.chop(9);
+		}
+		else
+		{
+			m_enabled = true;
+		}
+		m_mmc_id = name_base;
+		if (name_base.endsWith(".zip") || name_base.endsWith(".jar"))
+		{
 			m_type = MOD_ZIPFILE;
+			name_base.chop(4);
+		}
+		else if (name_base.endsWith(".litemod"))
+		{
+			m_type = MOD_LITEMOD;
+			name_base.chop(8);
+		}
 		else
+		{
 			m_type = MOD_SINGLEFILE;
+		}
+		m_name = name_base;
 	}
+
 	if (m_type == MOD_ZIPFILE)
 	{
 		QuaZip zip(m_file.filePath());
@@ -59,7 +84,7 @@ void Mod::repath(const QFileInfo &file)
 
 		if (zip.setCurrentFile("mcmod.info"))
 		{
-			if(!file.open(QIODevice::ReadOnly))
+			if (!file.open(QIODevice::ReadOnly))
 			{
 				zip.close();
 				return;
@@ -100,6 +125,27 @@ void Mod::repath(const QFileInfo &file)
 			ReadMCModInfo(data);
 		}
 	}
+	else if (m_type == MOD_LITEMOD)
+	{
+		QuaZip zip(m_file.filePath());
+		if (!zip.open(QuaZip::mdUnzip))
+			return;
+
+		QuaZipFile file(&zip);
+
+		if (zip.setCurrentFile("litemod.json"))
+		{
+			if (!file.open(QIODevice::ReadOnly))
+			{
+				zip.close();
+				return;
+			}
+
+			ReadLiteModInfo(file.readAll());
+			file.close();
+		}
+		zip.close();
+	}
 }
 
 // NEW format
@@ -114,7 +160,7 @@ void Mod::ReadMCModInfo(QByteArray contents)
 		if (!arr.at(0).isObject())
 			return;
 		auto firstObj = arr.at(0).toObject();
-		m_id = firstObj.value("modid").toString();
+		m_mod_id = firstObj.value("modid").toString();
 		m_name = firstObj.value("name").toString();
 		m_version = firstObj.value("version").toString();
 		m_homeurl = firstObj.value("url").toString();
@@ -132,8 +178,7 @@ void Mod::ReadMCModInfo(QByteArray contents)
 		}
 		m_credits = firstObj.value("credits").toString();
 		return;
-	}
-	;
+	};
 	QJsonParseError jsonError;
 	QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
 	// this is the very old format that had just the array
@@ -163,7 +208,7 @@ void Mod::ReadForgeInfo(QByteArray contents)
 {
 	// Read the data
 	m_name = "Minecraft Forge";
-	m_id = "Forge";
+	m_mod_id = "Forge";
 	m_homeurl = "http://www.minecraftforge.net/forum/";
 	INIFile ini;
 	if (!ini.loadFile(contents))
@@ -177,15 +222,40 @@ void Mod::ReadForgeInfo(QByteArray contents)
 	m_version = major + "." + minor + "." + revision + "." + build;
 }
 
+void Mod::ReadLiteModInfo(QByteArray contents)
+{
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
+	auto object = jsonDoc.object();
+	if(object.contains("name"))
+	{
+		m_mod_id = m_name = object.value("name").toString();
+	}
+	if(object.contains("version"))
+	{
+		m_version=object.value("version").toString("");
+	}
+	else
+	{
+		m_version=object.value("revision").toString("");
+	}
+	m_mcversion = object.value("mcversion").toString();
+	m_authors = object.value("author").toString();
+	m_description = object.value("description").toString();
+	m_homeurl = object.value("url").toString();
+}
+
 bool Mod::replace(Mod &with)
 {
 	if (!destroy())
 		return false;
 	bool success = false;
 	auto t = with.type();
+
 	if (t == MOD_ZIPFILE || t == MOD_SINGLEFILE)
 	{
-		success = QFile::copy(with.m_file.filePath(), m_file.path());
+		QLOG_DEBUG() << "Copy: " << with.m_file.filePath() << " to " << m_file.filePath();
+		success = QFile::copy(with.m_file.filePath(), m_file.filePath());
 	}
 	if (t == MOD_FOLDER)
 	{
@@ -193,11 +263,17 @@ bool Mod::replace(Mod &with)
 	}
 	if (success)
 	{
-		m_id = with.m_id;
-		m_mcversion = with.m_mcversion;
-		m_type = with.m_type;
 		m_name = with.m_name;
+		m_mmc_id = with.m_mmc_id;
+		m_mod_id = with.m_mod_id;
 		m_version = with.m_version;
+		m_mcversion = with.m_mcversion;
+		m_description = with.m_description;
+		m_authors = with.m_authors;
+		m_credits = with.m_credits;
+		m_homeurl = with.m_homeurl;
+		m_type = with.m_type;
+		m_file.refresh();
 	}
 	return success;
 }
@@ -232,6 +308,7 @@ QString Mod::version() const
 	switch (type())
 	{
 	case MOD_ZIPFILE:
+	case MOD_LITEMOD:
 		return m_version;
 	case MOD_FOLDER:
 		return "Folder";
@@ -241,3 +318,41 @@ QString Mod::version() const
 		return "VOID";
 	}
 }
+
+bool Mod::enable(bool value)
+{
+	if (m_type == Mod::MOD_UNKNOWN || m_type == Mod::MOD_FOLDER)
+		return false;
+
+	if (m_enabled == value)
+		return false;
+
+	QString path = m_file.absoluteFilePath();
+	if (value)
+	{
+		QFile foo(path);
+		if (!path.endsWith(".disabled"))
+			return false;
+		path.chop(9);
+		if (!foo.rename(path))
+			return false;
+	}
+	else
+	{
+		QFile foo(path);
+		path += ".disabled";
+		if (!foo.rename(path))
+			return false;
+	}
+	m_file = QFileInfo(path);
+	m_enabled = value;
+	return true;
+}
+bool Mod::operator==(const Mod &other) const
+{
+	return mmc_id() == other.mmc_id();
+}
+bool Mod::strongCompare(const Mod &other) const
+{
+	return mmc_id() == other.mmc_id() && version() == other.version() && type() == other.type();
+}
diff --git a/logic/Mod.h b/logic/Mod.h
index ca362a9d..2eb2b97a 100644
--- a/logic/Mod.h
+++ b/logic/Mod.h
@@ -25,6 +25,7 @@ public:
 		MOD_ZIPFILE,	//!< The mod is a zip file containing the mod's class files.
 		MOD_SINGLEFILE, //!< The mod is a single file (not a zip file).
 		MOD_FOLDER,	 //!< The mod is in a folder on the filesystem.
+		MOD_LITEMOD, //!< The mod is a litemod
 	};
 
 	Mod(const QFileInfo &file);
@@ -33,9 +34,13 @@ public:
 	{
 		return m_file;
 	}
-	QString id() const
+	QString mmc_id() const
 	{
-		return m_id;
+		return m_mmc_id;
+	}
+	QString mod_id() const
+	{
+		return m_mod_id;
 	}
 	ModType type() const
 	{
@@ -77,6 +82,13 @@ public:
 		return m_credits;
 	}
 
+	bool enabled() const
+	{
+		return m_enabled;
+	}
+
+	bool enable(bool value);
+
 	// delete all the files of this mod
 	bool destroy();
 	// replace this mod with a copy of the other
@@ -85,19 +97,13 @@ public:
 	void repath(const QFileInfo &file);
 
 	// WEAK compare operator - used for replacing mods
-	bool operator==(const Mod &other) const
-	{
-		return filename() == other.filename();
-	}
-	bool strongCompare(const Mod &other) const
-	{
-		return filename() == other.filename() && id() == other.id() &&
-			   version() == other.version() && type() == other.type();
-	}
+	bool operator==(const Mod &other) const;
+	bool strongCompare(const Mod &other) const;
 
 private:
 	void ReadMCModInfo(QByteArray contents);
 	void ReadForgeInfo(QByteArray contents);
+	void ReadLiteModInfo(QByteArray contents);
 
 protected:
 
@@ -108,7 +114,9 @@ protected:
 	*/
 
 	QFileInfo m_file;
-	QString m_id;
+	QString m_mmc_id;
+	QString m_mod_id;
+	bool m_enabled = true;
 	QString m_name;
 	QString m_version;
 	QString m_mcversion;
diff --git a/logic/ModList.cpp b/logic/ModList.cpp
index d5235fe9..fd41bcf7 100644
--- a/logic/ModList.cpp
+++ b/logic/ModList.cpp
@@ -19,6 +19,7 @@
 #include <QMimeData>
 #include <QUrl>
 #include <QUuid>
+#include <QString>
 #include <QFileSystemWatcher>
 #include "logger/QsLog.h"
 
@@ -27,7 +28,7 @@ ModList::ModList(const QString &dir, const QString &list_file)
 {
 	m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs |
 					QDir::NoSymLinks);
-	m_dir.setSorting(QDir::Name);
+	m_dir.setSorting(QDir::Name | QDir::IgnoreCase | QDir::LocaleAware);
 	m_list_id = QUuid::createUuid().toString();
 	m_watcher = new QFileSystemWatcher(this);
 	is_watching = false;
@@ -66,52 +67,89 @@ bool ModList::update()
 	if (!isValid())
 		return false;
 
+	QList<Mod> orderedMods;
 	QList<Mod> newMods;
 	m_dir.refresh();
 	auto folderContents = m_dir.entryInfoList();
-	bool orderWasInvalid = false;
+	bool orderOrStateChanged = false;
 
 	// first, process the ordered items (if any)
-	QStringList listOrder = readListFile();
+	OrderList listOrder = readListFile();
 	for (auto item : listOrder)
 	{
-		QFileInfo info(m_dir.filePath(item));
-		int idx = folderContents.indexOf(info);
+		QFileInfo infoEnabled(m_dir.filePath(item.id));
+		QFileInfo infoDisabled(m_dir.filePath(item.id + ".disabled"));
+		int idxEnabled = folderContents.indexOf(infoEnabled);
+		int idxDisabled = folderContents.indexOf(infoDisabled);
+		bool isEnabled;
+		// if both enabled and disabled versions are present, it's a special case...
+		if (idxEnabled >= 0 && idxDisabled >= 0)
+		{
+			// we only process the one we actually have in the order file.
+			// and exactly as we have it.
+			// THIS IS A CORNER CASE
+			isEnabled = item.enabled;
+		}
+		else
+		{
+			// only one is present.
+			// we pick the one that we found.
+			// we assume the mod was enabled/disabled by external means
+			isEnabled = idxEnabled >= 0;
+		}
+		int idx = isEnabled ? idxEnabled : idxDisabled;
+		QFileInfo & info = isEnabled ? infoEnabled : infoDisabled;
 		// if the file from the index file exists
 		if (idx != -1)
 		{
 			// remove from the actual folder contents list
 			folderContents.takeAt(idx);
 			// append the new mod
-			newMods.append(Mod(info));
+			orderedMods.append(Mod(info));
+			if (isEnabled != item.enabled)
+				orderOrStateChanged = true;
 		}
 		else
 		{
-			orderWasInvalid = true;
+			orderOrStateChanged = true;
 		}
 	}
-	for (auto entry : folderContents)
+	// if there are any untracked files...
+	if (folderContents.size())
 	{
-		newMods.append(Mod(entry));
+		// the order surely changed!
+		for (auto entry : folderContents)
+		{
+			newMods.append(Mod(entry));
+		}
+		std::sort(newMods.begin(), newMods.end(), [](const Mod & left, const Mod & right)
+		{ return left.name().localeAwareCompare(right.name()) <= 0; });
+		orderedMods.append(newMods);
+		orderOrStateChanged = true;
 	}
-	if (mods.size() != newMods.size())
+	// otherwise, if we were already tracking some mods
+	else if (mods.size())
 	{
-		orderWasInvalid = true;
-	}
-	else
-		for (int i = 0; i < mods.size(); i++)
-		{
-			if (!mods[i].strongCompare(newMods[i]))
+		// if the number doesn't match, order changed.
+		if (mods.size() != orderedMods.size())
+			orderOrStateChanged = true;
+		// if it does match, compare the mods themselves
+		else
+			for (int i = 0; i < mods.size(); i++)
 			{
-				orderWasInvalid = true;
-				break;
+				if (!mods[i].strongCompare(orderedMods[i]))
+				{
+					orderOrStateChanged = true;
+					break;
+				}
 			}
-		}
+	}
 	beginResetModel();
-	mods.swap(newMods);
+	mods.swap(orderedMods);
 	endResetModel();
-	if (orderWasInvalid)
+	if (orderOrStateChanged && !m_list_file.isEmpty())
 	{
+		QLOG_INFO() << "Mod list " << m_list_file << " changed!";
 		saveListFile();
 		emit changed();
 	}
@@ -123,17 +161,19 @@ void ModList::directoryChanged(QString path)
 	update();
 }
 
-QStringList ModList::readListFile()
+ModList::OrderList ModList::readListFile()
 {
-	QStringList stringList;
+	OrderList itemList;
 	if (m_list_file.isNull() || m_list_file.isEmpty())
-		return stringList;
+		return itemList;
 
 	QFile textFile(m_list_file);
 	if (!textFile.open(QIODevice::ReadOnly | QIODevice::Text))
-		return QStringList();
+		return OrderList();
 
-	QTextStream textStream(&textFile);
+	QTextStream textStream;
+	textStream.setAutoDetectUnicode(true);
+	textStream.setDevice(&textFile);
 	while (true)
 	{
 		QString line = textStream.readLine();
@@ -141,11 +181,18 @@ QStringList ModList::readListFile()
 			break;
 		else
 		{
-			stringList.append(line);
+			OrderItem it;
+			it.enabled = !line.endsWith(".disabled");
+			if (!it.enabled)
+			{
+				line.chop(9);
+			}
+			it.id = line;
+			itemList.append(it);
 		}
 	}
 	textFile.close();
-	return stringList;
+	return itemList;
 }
 
 bool ModList::saveListFile()
@@ -155,12 +202,16 @@ bool ModList::saveListFile()
 	QFile textFile(m_list_file);
 	if (!textFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate))
 		return false;
-	QTextStream textStream(&textFile);
+	QTextStream textStream;
+	textStream.setGenerateByteOrderMark(true);
+	textStream.setCodec("UTF-8");
+	textStream.setDevice(&textFile);
 	for (auto mod : mods)
 	{
-		auto pathname = mod.filename();
-		QString filename = pathname.fileName();
-		textStream << filename << endl;
+		textStream << mod.mmc_id();
+		if (!mod.enabled())
+			textStream << ".disabled";
+		textStream << endl;
 	}
 	textFile.close();
 	return false;
@@ -185,6 +236,9 @@ bool ModList::installMod(const QFileInfo &filename, int index)
 	int idx = mods.indexOf(m);
 	if (idx != -1)
 	{
+		int idx2 = mods.indexOf(m,idx+1);
+		if(idx2 != -1)
+			return false;
 		if (mods[idx].replace(m))
 		{
 
@@ -201,7 +255,7 @@ bool ModList::installMod(const QFileInfo &filename, int index)
 	auto type = m.type();
 	if (type == Mod::MOD_UNKNOWN)
 		return false;
-	if (type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE)
+	if (type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE || type == Mod::MOD_LITEMOD)
 	{
 		QString newpath = PathCombine(m_dir.path(), filename.fileName());
 		if (!QFile::copy(filename.filePath(), newpath))
@@ -327,7 +381,7 @@ bool ModList::moveModsDown(int first, int last)
 
 int ModList::columnCount(const QModelIndex &parent) const
 {
-	return 2;
+	return 3;
 }
 
 QVariant ModList::data(const QModelIndex &index, int role) const
@@ -341,43 +395,96 @@ QVariant ModList::data(const QModelIndex &index, int role) const
 	if (row < 0 || row >= mods.size())
 		return QVariant();
 
-	if (role != Qt::DisplayRole)
-		return QVariant();
-
-	switch (column)
+	switch (role)
 	{
-	case 0:
-		return mods[row].name();
-	case 1:
-		return mods[row].version();
-	case 2:
-		return mods[row].mcversion();
+	case Qt::DisplayRole:
+		switch (index.column())
+		{
+		case NameColumn:
+			return mods[row].name();
+		case VersionColumn:
+			return mods[row].version();
+
+		default:
+			return QVariant();
+		}
+
+	case Qt::ToolTipRole:
+		return mods[row].mmc_id();
+
+	case Qt::CheckStateRole:
+		switch (index.column())
+		{
+		case ActiveColumn:
+			return mods[row].enabled();
+		default:
+			return QVariant();
+		}
 	default:
 		return QVariant();
 	}
 }
 
+bool ModList::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+	if (index.row() < 0 || index.row() >= rowCount(index) || !index.isValid())
+	{
+		return false;
+	}
+
+	if (role == Qt::CheckStateRole)
+	{
+		auto &mod = mods[index.row()];
+		if (mod.enable(!mod.enabled()))
+		{
+			emit dataChanged(index, index);
+			return true;
+		}
+	}
+	return false;
+}
+
 QVariant ModList::headerData(int section, Qt::Orientation orientation, int role) const
 {
-	if (role != Qt::DisplayRole || orientation != Qt::Horizontal)
-		return QVariant();
-	switch (section)
+	switch (role)
 	{
-	case 0:
-		return QString("Name");
-	case 1:
-		return QString("Version");
-	case 2:
-		return QString("Minecraft");
+	case Qt::DisplayRole:
+		switch (section)
+		{
+		case ActiveColumn:
+			return QString();
+		case NameColumn:
+			return QString("Name");
+		case VersionColumn:
+			return QString("Version");
+		default:
+			return QVariant();
+		}
+
+	case Qt::ToolTipRole:
+		switch (section)
+		{
+		case ActiveColumn:
+			return "Is the mod enabled?";
+		case NameColumn:
+			return "The name of the mod.";
+		case VersionColumn:
+			return "The version of the mod.";
+		default:
+			return QVariant();
+		}
+	default:
+		return QVariant();
 	}
-	return QString();
+	return QVariant();
 }
 
 Qt::ItemFlags ModList::flags(const QModelIndex &index) const
 {
 	Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
 	if (index.isValid())
-		return Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | defaultFlags;
+		return Qt::ItemIsUserCheckable | Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled |
+			   defaultFlags;
 	else
 		return Qt::ItemIsDropEnabled | defaultFlags;
 }
@@ -456,6 +563,14 @@ bool ModList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row
 			QString filename = url.toLocalFile();
 			installMod(filename, row);
 			QLOG_INFO() << "installing: " << filename;
+			// if there is no ordering, re-sort the list
+			if (m_list_file.isEmpty())
+			{
+				beginResetModel();
+				std::sort(mods.begin(), mods.end(), [](const Mod & left, const Mod & right)
+				{ return left.name().localeAwareCompare(right.name()) <= 0; });
+				endResetModel();
+			}
 		}
 		if (was_watching)
 			startWatching();
diff --git a/logic/ModList.h b/logic/ModList.h
index 803a5429..0d6507fb 100644
--- a/logic/ModList.h
+++ b/logic/ModList.h
@@ -34,9 +34,18 @@ class ModList : public QAbstractListModel
 {
 	Q_OBJECT
 public:
+	enum Columns
+	{
+		ActiveColumn = 0,
+		NameColumn,
+		VersionColumn
+	};
 	ModList(const QString &dir, const QString &list_file = QString());
 
 	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+	virtual bool setData(const QModelIndex &index, const QVariant &value,
+						 int role = Qt::EditRole);
+
 	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const
 	{
 		return size();
@@ -59,7 +68,6 @@ public:
 	{
 		return mods[index];
 	}
-	;
 
 	/// Reloads the mod list and returns true if the list changed.
 	virtual bool update();
@@ -119,7 +127,13 @@ public:
 	}
 
 private:
-	QStringList readListFile();
+	struct OrderItem
+	{
+		QString id;
+		bool enabled = false;
+	};
+	typedef QList<OrderItem> OrderList;
+	OrderList readListFile();
 	bool saveListFile();
 private
 slots:
diff --git a/logic/OneSixFTBInstance.cpp b/logic/OneSixFTBInstance.cpp
new file mode 100644
index 00000000..4bb5cf42
--- /dev/null
+++ b/logic/OneSixFTBInstance.cpp
@@ -0,0 +1,120 @@
+#include "OneSixFTBInstance.h"
+
+#include "OneSixVersion.h"
+#include "OneSixLibrary.h"
+#include "tasks/SequentialTask.h"
+#include "ForgeInstaller.h"
+#include "lists/ForgeVersionList.h"
+#include "MultiMC.h"
+
+class OneSixFTBInstanceForge : public Task
+{
+	Q_OBJECT
+public:
+	explicit OneSixFTBInstanceForge(const QString &version, OneSixFTBInstance *inst, QObject *parent = 0) :
+		Task(parent), instance(inst), version("Forge " + version)
+	{
+	}
+
+	void executeTask()
+	{
+		for (int i = 0; i < MMC->forgelist()->count(); ++i)
+		{
+			if (MMC->forgelist()->at(i)->name() == version)
+			{
+				forgeVersion = std::dynamic_pointer_cast<ForgeVersion>(MMC->forgelist()->at(i));
+				break;
+			}
+		}
+		if (!forgeVersion)
+		{
+			emitFailed(QString("Couldn't find forge version ") + version );
+			return;
+		}
+		entry = MMC->metacache()->resolveEntry("minecraftforge", forgeVersion->filename);
+		if (entry->stale)
+		{
+			setStatus(tr("Downloading Forge..."));
+			fjob = new NetJob("Forge download");
+			fjob->addNetAction(CacheDownload::make(forgeVersion->installer_url, entry));
+			connect(fjob, &NetJob::failed, [this](){emitFailed(m_failReason);});
+			connect(fjob, &NetJob::succeeded, this, &OneSixFTBInstanceForge::installForge);
+			connect(fjob, &NetJob::progress, [this](qint64 c, qint64 total){ setProgress(100 * c / total); });
+			fjob->start();
+		}
+		else
+		{
+			installForge();
+		}
+	}
+
+private
+slots:
+	void installForge()
+	{
+		setStatus(tr("Installing Forge..."));
+		QString forgePath = entry->getFullPath();
+		ForgeInstaller forge(forgePath, forgeVersion->universal_url);
+		if (!instance->reloadFullVersion())
+		{
+			emitFailed(tr("Couldn't load the version config"));
+			return;
+		}
+		instance->revertCustomVersion();
+		instance->customizeVersion();
+		auto version = instance->getFullVersion();
+		if (!forge.apply(version))
+		{
+			emitFailed(tr("Couldn't install Forge"));
+			return;
+		}
+		emitSucceeded();
+	}
+
+private:
+	OneSixFTBInstance *instance;
+	QString version;
+	ForgeVersionPtr forgeVersion;
+	MetaEntryPtr entry;
+	NetJob *fjob;
+};
+
+OneSixFTBInstance::OneSixFTBInstance(const QString &rootDir, SettingsObject *settings, QObject *parent) :
+	OneSixInstance(rootDir, settings, parent)
+{
+	QFile f(QDir(minecraftRoot()).absoluteFilePath("pack.json"));
+	if (f.open(QFile::ReadOnly))
+	{
+		QString data = QString::fromUtf8(f.readAll());
+		QRegularExpressionMatch match = QRegularExpression("net.minecraftforge:minecraftforge:[\\.\\d]*").match(data);
+		m_forge.reset(new OneSixLibrary(match.captured()));
+		m_forge->finalize();
+	}
+}
+
+QString OneSixFTBInstance::getStatusbarDescription()
+{
+	return "OneSix FTB: " + intendedVersionId();
+}
+bool OneSixFTBInstance::menuActionEnabled(QString action_name) const
+{
+	return false;
+}
+
+std::shared_ptr<Task> OneSixFTBInstance::doUpdate(bool only_prepare)
+{
+	std::shared_ptr<SequentialTask> task;
+	task.reset(new SequentialTask(this));
+	if (!MMC->forgelist()->isLoaded())
+	{
+		task->addTask(std::shared_ptr<Task>(MMC->forgelist()->getLoadTask()));
+	}
+	task->addTask(OneSixInstance::doUpdate(only_prepare));
+	task->addTask(std::shared_ptr<Task>(new OneSixFTBInstanceForge(m_forge->version(), this, this)));
+	//FIXME: yes. this may appear dumb. but the previous step can change the list, so we do it all again.
+	//TODO: Add a graph task. Construct graphs of tasks so we may capture the logic properly.
+	task->addTask(OneSixInstance::doUpdate(only_prepare));
+	return task;
+}
+
+#include "OneSixFTBInstance.moc"
diff --git a/logic/OneSixFTBInstance.h b/logic/OneSixFTBInstance.h
new file mode 100644
index 00000000..7600090c
--- /dev/null
+++ b/logic/OneSixFTBInstance.h
@@ -0,0 +1,20 @@
+#pragma once
+
+#include "OneSixInstance.h"
+
+class OneSixLibrary;
+
+class OneSixFTBInstance : public OneSixInstance
+{
+	Q_OBJECT
+public:
+	explicit OneSixFTBInstance(const QString &rootDir, SettingsObject *settings,
+							QObject *parent = 0);
+	virtual QString getStatusbarDescription();
+	virtual bool menuActionEnabled(QString action_name) const;
+
+	virtual std::shared_ptr<Task> doUpdate(bool only_prepare) override;
+
+private:
+	std::shared_ptr<OneSixLibrary> m_forge;
+};
diff --git a/logic/OneSixInstance.cpp b/logic/OneSixInstance.cpp
index fd41b9e5..2392c683 100644
--- a/logic/OneSixInstance.cpp
+++ b/logic/OneSixInstance.cpp
@@ -33,8 +33,8 @@ OneSixInstance::OneSixInstance(const QString &rootDir, SettingsObject *setting_o
 	: BaseInstance(new OneSixInstancePrivate(), rootDir, setting_obj, parent)
 {
 	I_D(OneSixInstance);
-	d->m_settings->registerSetting(new Setting("IntendedVersion", ""));
-	d->m_settings->registerSetting(new Setting("ShouldUpdate", false));
+	d->m_settings->registerSetting("IntendedVersion", "");
+	d->m_settings->registerSetting("ShouldUpdate", false);
 	reloadFullVersion();
 }
 
diff --git a/logic/OneSixLibrary.h b/logic/OneSixLibrary.h
index 5cb867c2..3f0bc83d 100644
--- a/logic/OneSixLibrary.h
+++ b/logic/OneSixLibrary.h
@@ -68,6 +68,12 @@ public:
 		m_name = name;
 	}
 
+	/// Returns the raw name field
+	QString rawName() const
+	{
+		return m_name;
+	}
+
 	QJsonObject toJson();
 
 	/**
diff --git a/logic/OneSixUpdate.cpp b/logic/OneSixUpdate.cpp
index 696eeff0..4d93477a 100644
--- a/logic/OneSixUpdate.cpp
+++ b/logic/OneSixUpdate.cpp
@@ -57,7 +57,7 @@ void OneSixUpdate::executeTask()
 		/*
 		 * FIXME: in offline mode, do not proceed!
 		 */
-		setStatus("Testing the Java installation.");
+		setStatus(tr("Testing the Java installation..."));
 		QString java_path = m_inst->settings().get("JavaPath").toString();
 
 		checker.reset(new JavaChecker());
@@ -89,7 +89,7 @@ void OneSixUpdate::executeTask()
 
 void OneSixUpdate::checkJavaOnline()
 {
-	setStatus("Testing the Java installation.");
+	setStatus(tr("Testing the Java installation..."));
 	QString java_path = m_inst->settings().get("JavaPath").toString();
 
 	checker.reset(new JavaChecker());
@@ -128,7 +128,7 @@ void OneSixUpdate::checkFinishedOffline(JavaCheckResult result)
 void OneSixUpdate::versionFileStart()
 {
 	QLOG_INFO() << m_inst->name() << ": getting version file.";
-	setStatus("Getting the version files from Mojang.");
+	setStatus(tr("Getting the version files from Mojang..."));
 
 	QString urlstr = "http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
 	auto job = new NetJob("Version index");
@@ -196,7 +196,7 @@ void OneSixUpdate::versionFileFailed()
 
 void OneSixUpdate::assetIndexStart()
 {
-	setStatus("Updating asset index.");
+	setStatus(tr("Updating assets index..."));
 	OneSixInstance *inst = (OneSixInstance *)m_inst;
 	std::shared_ptr<OneSixVersion> version = inst->getFullVersion();
 	QString assetName = version->assets;
@@ -247,7 +247,7 @@ void OneSixUpdate::assetIndexFinished()
 	}
 	if(dls.size())
 	{
-		setStatus("Getting the assets files from Mojang...");
+		setStatus(tr("Getting the assets files from Mojang..."));
 		auto job = new NetJob("Assets for " + inst->name());
 		for(auto dl: dls)
 			job->addNetAction(dl);
@@ -281,7 +281,7 @@ void OneSixUpdate::assetsFailed()
 
 void OneSixUpdate::jarlibStart()
 {
-	setStatus("Getting the library files from Mojang.");
+	setStatus(tr("Getting the library files from Mojang..."));
 	QLOG_INFO() << m_inst->name() << ": downloading libraries";
 	OneSixInstance *inst = (OneSixInstance *)m_inst;
 	bool successful = inst->reloadFullVersion();
@@ -369,7 +369,7 @@ void OneSixUpdate::jarlibFailed()
 
 void OneSixUpdate::prepareForLaunch()
 {
-	setStatus("Preparing for launch.");
+	setStatus(tr("Preparing for launch..."));
 	QLOG_INFO() << m_inst->name() << ": preparing for launch";
 	auto onesix_inst = (OneSixInstance *)m_inst;
 
diff --git a/logic/assets/AssetsMigrateTask.cpp b/logic/assets/AssetsMigrateTask.cpp
new file mode 100644
index 00000000..7c1f5204
--- /dev/null
+++ b/logic/assets/AssetsMigrateTask.cpp
@@ -0,0 +1,143 @@
+#include "AssetsMigrateTask.h"
+#include "MultiMC.h"
+#include "logger/QsLog.h"
+#include <QJsonObject>
+#include <QJsonDocument>
+#include <QDirIterator>
+#include <QCryptographicHash>
+#include "gui/dialogs/CustomMessageBox.h"
+#include <QDesktopServices>
+
+AssetsMigrateTask::AssetsMigrateTask(int expected, QObject *parent)
+	: Task(parent)
+{
+	this->m_expected = expected;
+}
+
+void AssetsMigrateTask::executeTask()
+{
+	this->setStatus(tr("Migrating legacy assets..."));
+	this->setProgress(0);
+
+	QDir assets_dir("assets");
+	if (!assets_dir.exists())
+	{
+		emitFailed("Assets directory didn't exist");
+		return;
+	}
+	assets_dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot);
+	int base_length = assets_dir.path().length();
+
+	QList<QString> blacklist = {"indexes", "objects", "virtual"};
+
+	if (!assets_dir.exists("objects"))
+		assets_dir.mkdir("objects");
+	QDir objects_dir("assets/objects");
+
+	QDirIterator iterator(assets_dir, QDirIterator::Subdirectories);
+	int successes = 0;
+	int failures = 0;
+	while (iterator.hasNext())
+	{
+		QString currentDir = iterator.next();
+		currentDir = currentDir.remove(0, base_length + 1);
+
+		bool ignore = false;
+		for (QString blacklisted : blacklist)
+		{
+			if (currentDir.startsWith(blacklisted))
+				ignore = true;
+		}
+
+		if (!iterator.fileInfo().isDir() && !ignore)
+		{
+			QString filename = iterator.filePath();
+
+			QFile input(filename);
+			input.open(QIODevice::ReadOnly | QIODevice::WriteOnly);
+			QString sha1sum =
+				QCryptographicHash::hash(input.readAll(), QCryptographicHash::Sha1)
+					.toHex()
+					.constData();
+
+			QString object_name = filename.remove(0, base_length + 1);
+			QLOG_DEBUG() << "Processing" << object_name << ":" << sha1sum << input.size();
+
+			QString object_tlk = sha1sum.left(2);
+			QString object_tlk_dir = objects_dir.path() + "/" + object_tlk;
+
+			QDir tlk_dir(object_tlk_dir);
+			if (!tlk_dir.exists())
+				objects_dir.mkdir(object_tlk);
+
+			QString new_filename = tlk_dir.path() + "/" + sha1sum;
+			QFile new_object(new_filename);
+			if (!new_object.exists())
+			{
+				bool rename_success = input.rename(new_filename);
+				QLOG_DEBUG() << " Doesn't exist, copying to" << new_filename << ":"
+							 << QString::number(rename_success);
+				if (rename_success)
+					successes++;
+				else
+					failures++;
+			}
+			else
+			{
+				input.remove();
+				QLOG_DEBUG() << " Already exists, deleting original and not copying.";
+			}
+
+			this->setProgress(100 * ((successes + failures) / (float) this->m_expected));
+		}
+	}
+
+	if (successes + failures == 0)
+	{
+		this->setProgress(100);
+		QLOG_DEBUG() << "No legacy assets needed importing.";
+	}
+	else
+	{
+		QLOG_DEBUG() << "Finished copying legacy assets:" << successes << "successes and"
+					 << failures << "failures.";
+
+		this->setStatus("Cleaning up legacy assets...");
+		this->setProgress(100);
+
+		QDirIterator cleanup_iterator(assets_dir);
+
+		while (cleanup_iterator.hasNext())
+		{
+			QString currentDir = cleanup_iterator.next();
+			currentDir = currentDir.remove(0, base_length + 1);
+
+			bool ignore = false;
+			for (QString blacklisted : blacklist)
+			{
+				if (currentDir.startsWith(blacklisted))
+					ignore = true;
+			}
+
+			if (cleanup_iterator.fileInfo().isDir() && !ignore)
+			{
+				QString path = cleanup_iterator.filePath();
+				QDir folder(path);
+
+				QLOG_DEBUG() << "Cleaning up legacy assets folder:" << path;
+
+				folder.removeRecursively();
+			}
+		}
+	}
+
+	if(failures > 0)
+	{
+		emitFailed(QString("Failed to migrate %1 legacy assets").arg(failures));
+	}
+	else
+	{
+		emitSucceeded();
+	}
+}
+
diff --git a/logic/assets/AssetsMigrateTask.h b/logic/assets/AssetsMigrateTask.h
new file mode 100644
index 00000000..d8d58c97
--- /dev/null
+++ b/logic/assets/AssetsMigrateTask.h
@@ -0,0 +1,18 @@
+#pragma once
+#include "logic/tasks/Task.h"
+#include <QMessageBox>
+#include <QNetworkReply>
+#include <memory>
+
+class AssetsMigrateTask : public Task
+{
+	Q_OBJECT
+public:
+	explicit AssetsMigrateTask(int expected, QObject* parent=0);
+
+protected:
+	virtual void executeTask();
+
+private:
+	int m_expected;
+};
diff --git a/logic/assets/AssetsUtils.cpp b/logic/assets/AssetsUtils.cpp
index 11d928cf..bca7773d 100644
--- a/logic/assets/AssetsUtils.cpp
+++ b/logic/assets/AssetsUtils.cpp
@@ -25,23 +25,18 @@
 
 namespace AssetsUtils
 {
-void migrateOldAssets()
+int findLegacyAssets()
 {
 	QDir assets_dir("assets");
 	if (!assets_dir.exists())
-		return;
+		return 0;
 	assets_dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot);
 	int base_length = assets_dir.path().length();
 
 	QList<QString> blacklist = {"indexes", "objects", "virtual"};
 
-	if (!assets_dir.exists("objects"))
-		assets_dir.mkdir("objects");
-	QDir objects_dir("assets/objects");
-
 	QDirIterator iterator(assets_dir, QDirIterator::Subdirectories);
-	int successes = 0;
-	int failures = 0;
+	int found = 0;
 	while (iterator.hasNext())
 	{
 		QString currentDir = iterator.next();
@@ -56,79 +51,11 @@ void migrateOldAssets()
 
 		if (!iterator.fileInfo().isDir() && !ignore)
 		{
-			QString filename = iterator.filePath();
-
-			QFile input(filename);
-			input.open(QIODevice::ReadOnly | QIODevice::WriteOnly);
-			QString sha1sum =
-				QCryptographicHash::hash(input.readAll(), QCryptographicHash::Sha1)
-					.toHex()
-					.constData();
-
-			QString object_name = filename.remove(0, base_length + 1);
-			QLOG_DEBUG() << "Processing" << object_name << ":" << sha1sum << input.size();
-
-			QString object_tlk = sha1sum.left(2);
-			QString object_tlk_dir = objects_dir.path() + "/" + object_tlk;
-
-			QDir tlk_dir(object_tlk_dir);
-			if (!tlk_dir.exists())
-				objects_dir.mkdir(object_tlk);
-
-			QString new_filename = tlk_dir.path() + "/" + sha1sum;
-			QFile new_object(new_filename);
-			if (!new_object.exists())
-			{
-				bool rename_success = input.rename(new_filename);
-				QLOG_DEBUG() << " Doesn't exist, copying to" << new_filename << ":"
-							 << QString::number(rename_success);
-				if (rename_success)
-					successes++;
-				else
-					failures++;
-			}
-			else
-			{
-				input.remove();
-				QLOG_DEBUG() << " Already exists, deleting original and not copying.";
-			}
+			found++;
 		}
 	}
 
-	if (successes + failures == 0)
-	{
-		QLOG_DEBUG() << "No legacy assets needed importing.";
-	}
-	else
-	{
-		QLOG_DEBUG() << "Finished copying legacy assets:" << successes << "successes and"
-					 << failures << "failures.";
-
-		QDirIterator cleanup_iterator(assets_dir);
-
-		while (cleanup_iterator.hasNext())
-		{
-			QString currentDir = cleanup_iterator.next();
-			currentDir = currentDir.remove(0, base_length + 1);
-
-			bool ignore = false;
-			for (QString blacklisted : blacklist)
-			{
-				if (currentDir.startsWith(blacklisted))
-					ignore = true;
-			}
-
-			if (cleanup_iterator.fileInfo().isDir() && !ignore)
-			{
-				QString path = cleanup_iterator.filePath();
-				QDir folder(path);
-
-				QLOG_DEBUG() << "Cleaning up legacy assets folder:" << path;
-
-				folder.removeRecursively();
-			}
-		}
-	}
+	return found;
 }
 
 /*
diff --git a/logic/assets/AssetsUtils.h b/logic/assets/AssetsUtils.h
index 5276d5a5..aaacc2db 100644
--- a/logic/assets/AssetsUtils.h
+++ b/logic/assets/AssetsUtils.h
@@ -34,6 +34,6 @@ struct AssetsIndex
 
 namespace AssetsUtils
 {
-void migrateOldAssets();
 bool loadAssetsIndexJson(QString file, AssetsIndex* index);
+int findLegacyAssets();
 }
diff --git a/logic/auth/MojangAccount.cpp b/logic/auth/MojangAccount.cpp
index bc6af98f..a462eda5 100644
--- a/logic/auth/MojangAccount.cpp
+++ b/logic/auth/MojangAccount.cpp
@@ -32,7 +32,8 @@ MojangAccountPtr MojangAccount::loadFromJson(const QJsonObject &object)
 	// The JSON object must at least have a username for it to be valid.
 	if (!object.value("username").isString())
 	{
-		QLOG_ERROR() << "Can't load Mojang account info from JSON object. Username field is missing or of the wrong type.";
+		QLOG_ERROR() << "Can't load Mojang account info from JSON object. Username field is "
+						"missing or of the wrong type.";
 		return nullptr;
 	}
 
@@ -43,7 +44,8 @@ MojangAccountPtr MojangAccount::loadFromJson(const QJsonObject &object)
 	QJsonArray profileArray = object.value("profiles").toArray();
 	if (profileArray.size() < 1)
 	{
-		QLOG_ERROR() << "Can't load Mojang account with username \"" << username << "\". No profiles found.";
+		QLOG_ERROR() << "Can't load Mojang account with username \"" << username
+					 << "\". No profiles found.";
 		return nullptr;
 	}
 
@@ -63,7 +65,7 @@ MojangAccountPtr MojangAccount::loadFromJson(const QJsonObject &object)
 	}
 
 	MojangAccountPtr account(new MojangAccount());
-	if(object.value("user").isObject())
+	if (object.value("user").isObject())
 	{
 		User u;
 		QJsonObject userStructure = object.value("user").toObject();
@@ -92,7 +94,7 @@ MojangAccountPtr MojangAccount::loadFromJson(const QJsonObject &object)
 	return account;
 }
 
-MojangAccountPtr MojangAccount::createFromUsername(const QString& username)
+MojangAccountPtr MojangAccount::createFromUsername(const QString &username)
 {
 	MojangAccountPtr account(new MojangAccount());
 	account->m_clientToken = QUuid::createUuid().toString().remove(QRegExp("[{}-]"));
@@ -152,27 +154,27 @@ bool MojangAccount::setCurrentProfile(const QString &profileId)
 	return false;
 }
 
-const AccountProfile* MojangAccount::currentProfile() const
+const AccountProfile *MojangAccount::currentProfile() const
 {
-	if(m_currentProfile == -1)
+	if (m_currentProfile == -1)
 		return nullptr;
 	return &m_profiles[m_currentProfile];
 }
 
 AccountStatus MojangAccount::accountStatus() const
 {
-	if(m_accessToken.isEmpty())
+	if (m_accessToken.isEmpty())
 		return NotVerified;
-	if(!m_online)
+	if (!m_online)
 		return Verified;
 	return Online;
 }
 
-std::shared_ptr<Task> MojangAccount::login(QString password)
+std::shared_ptr<YggdrasilTask> MojangAccount::login(QString password)
 {
-	if(m_currentTask)
+	if (m_currentTask)
 		return m_currentTask;
-	if(password.isEmpty())
+	if (password.isEmpty())
 	{
 		m_currentTask.reset(new RefreshTask(this));
 	}
@@ -196,7 +198,7 @@ void MojangAccount::authFailed(QString reason)
 {
 	// This is emitted when the yggdrasil tasks time out or are cancelled.
 	// -> we treat the error as no-op
-	if(reason != "Yggdrasil task cancelled.")
+	if (reason != "Yggdrasil task cancelled.")
 	{
 		m_online = false;
 		m_accessToken = QString();
diff --git a/logic/auth/MojangAccount.h b/logic/auth/MojangAccount.h
index 325aa826..dd5d54ae 100644
--- a/logic/auth/MojangAccount.h
+++ b/logic/auth/MojangAccount.h
@@ -95,7 +95,7 @@ public: /* manipulation */
 	 * Attempt to login. Empty password means we use the token.
 	 * If the attempt fails because we already are performing some task, it returns false.
 	 */
-	std::shared_ptr<Task> login(QString password = QString());
+	std::shared_ptr<YggdrasilTask> login(QString password = QString());
 
 	void downgrade()
 	{
diff --git a/logic/auth/YggdrasilTask.cpp b/logic/auth/YggdrasilTask.cpp
index 088e1fc0..277d7bfd 100644
--- a/logic/auth/YggdrasilTask.cpp
+++ b/logic/auth/YggdrasilTask.cpp
@@ -48,6 +48,7 @@ void YggdrasilTask::executeTask()
 	connect(m_netReply, &QNetworkReply::finished, this, &YggdrasilTask::processReply);
 	connect(m_netReply, &QNetworkReply::uploadProgress, this, &YggdrasilTask::refreshTimers);
 	connect(m_netReply, &QNetworkReply::downloadProgress, this, &YggdrasilTask::refreshTimers);
+	connect(m_netReply, &QNetworkReply::sslErrors, this, &YggdrasilTask::sslErrors);
 	timeout_keeper.setSingleShot(true);
 	timeout_keeper.start(timeout_max);
 	counter.setSingleShot(false);
@@ -75,16 +76,45 @@ void YggdrasilTask::abort()
 	m_netReply->abort();
 }
 
+void YggdrasilTask::sslErrors(QList<QSslError> errors)
+{
+	int i = 1;
+	for (auto error : errors)
+	{
+		QLOG_ERROR() << "LOGIN SSL Error #" << i << " : " << error.errorString();
+		auto cert = error.certificate();
+		QLOG_ERROR() << "Certificate in question:\n" << cert.toText();
+		i++;
+	}
+}
+
 void YggdrasilTask::processReply()
 {
 	setStatus(getStateMessage(STATE_PROCESSING_RESPONSE));
 
+	if (m_netReply->error() == QNetworkReply::SslHandshakeFailedError)
+	{
+		emitFailed(
+			tr("<b>SSL Handshake failed.</b><br/>There might be a few causes for it:<br/>"
+			   "<ul>"
+			   "<li>You use Windows XP and need to <a "
+			   "href=\"http://www.microsoft.com/en-us/download/details.aspx?id=38918\">update "
+			   "your root certificates</a></li>"
+			   "<li>Some device on your network is interfering with SSL traffic. In that case, "
+			   "you have bigger worries than Minecraft not starting.</li>"
+			   "<li>Possibly something else. Check the MultiMC log file for details</li>"
+			   "</ul>"));
+		return;
+	}
+
 	// any network errors lead to offline mode right now
 	if (m_netReply->error() >= QNetworkReply::ConnectionRefusedError &&
 		m_netReply->error() <= QNetworkReply::UnknownNetworkError)
 	{
 		// WARNING/FIXME: the value here is used in MojangAccount to detect the cancel/timeout
 		emitFailed("Yggdrasil task cancelled.");
+		QLOG_ERROR() << "Yggdrasil task cancelled because of: " << m_netReply->error() << " : "
+					 << m_netReply->errorString();
 		return;
 	}
 
@@ -172,10 +202,10 @@ QString YggdrasilTask::getStateMessage(const YggdrasilTask::State state) const
 	switch (state)
 	{
 	case STATE_SENDING_REQUEST:
-		return tr("Sending request to auth servers.");
+		return tr("Sending request to auth servers...");
 	case STATE_PROCESSING_RESPONSE:
-		return tr("Processing response from servers.");
+		return tr("Processing response from servers...");
 	default:
-		return tr("Processing. Please wait.");
+		return tr("Processing. Please wait...");
 	}
 }
diff --git a/logic/auth/YggdrasilTask.h b/logic/auth/YggdrasilTask.h
index 1f81a2d0..85f5a1e1 100644
--- a/logic/auth/YggdrasilTask.h
+++ b/logic/auth/YggdrasilTask.h
@@ -20,6 +20,7 @@
 #include <QString>
 #include <QJsonObject>
 #include <QTimer>
+#include <qsslerror.h>
 
 #include "logic/auth/MojangAccount.h"
 
@@ -99,6 +100,7 @@ slots:
 	void processReply();
 	void refreshTimers(qint64, qint64);
 	void heartbeat();
+	void sslErrors(QList<QSslError>);
 
 public
 slots:
diff --git a/logic/auth/flows/AuthenticateTask.cpp b/logic/auth/flows/AuthenticateTask.cpp
index f60be35d..6548c4e9 100644
--- a/logic/auth/flows/AuthenticateTask.cpp
+++ b/logic/auth/flows/AuthenticateTask.cpp
@@ -194,9 +194,9 @@ QString AuthenticateTask::getStateMessage(const YggdrasilTask::State state) cons
 	switch (state)
 	{
 	case STATE_SENDING_REQUEST:
-		return tr("Authenticating: Sending request.");
+		return tr("Authenticating: Sending request...");
 	case STATE_PROCESSING_RESPONSE:
-		return tr("Authenticating: Processing response.");
+		return tr("Authenticating: Processing response...");
 	default:
 		return YggdrasilTask::getStateMessage(state);
 	}
diff --git a/logic/auth/flows/RefreshTask.cpp b/logic/auth/flows/RefreshTask.cpp
index 5f68ccc7..f63c736e 100644
--- a/logic/auth/flows/RefreshTask.cpp
+++ b/logic/auth/flows/RefreshTask.cpp
@@ -145,9 +145,9 @@ QString RefreshTask::getStateMessage(const YggdrasilTask::State state) const
 	switch (state)
 	{
 	case STATE_SENDING_REQUEST:
-		return tr("Refreshing login token.");
+		return tr("Refreshing login token...");
 	case STATE_PROCESSING_RESPONSE:
-		return tr("Refreshing login token: Processing response.");
+		return tr("Refreshing login token: Processing response...");
 	default:
 		return YggdrasilTask::getStateMessage(state);
 	}
diff --git a/logic/auth/flows/ValidateTask.cpp b/logic/auth/flows/ValidateTask.cpp
index 84d5e703..4f7323fd 100644
--- a/logic/auth/flows/ValidateTask.cpp
+++ b/logic/auth/flows/ValidateTask.cpp
@@ -55,9 +55,9 @@ QString ValidateTask::getStateMessage(const YggdrasilTask::State state) const
 	switch (state)
 	{
 	case STATE_SENDING_REQUEST:
-		return tr("Validating Access Token: Sending request.");
+		return tr("Validating access token: Sending request...");
 	case STATE_PROCESSING_RESPONSE:
-		return tr("Validating Access Token: Processing response.");
+		return tr("Validating access token: Processing response...");
 	default:
 		return YggdrasilTask::getStateMessage(state);
 	}
diff --git a/logic/icons/IconList.cpp b/logic/icons/IconList.cpp
new file mode 100644
index 00000000..cda2db7b
--- /dev/null
+++ b/logic/icons/IconList.cpp
@@ -0,0 +1,351 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "IconList.h"
+#include <pathutils.h>
+#include <settingsobject.h>
+#include <QMap>
+#include <QEventLoop>
+#include <QMimeData>
+#include <QUrl>
+#include <QFileSystemWatcher>
+#include <MultiMC.h>
+#include <setting.h>
+
+#define MAX_SIZE 1024
+
+IconList::IconList(QObject *parent) : QAbstractListModel(parent)
+{
+	// add builtin icons
+	QDir instance_icons(":/icons/instances/");
+	auto file_info_list = instance_icons.entryInfoList(QDir::Files, QDir::Name);
+	for (auto file_info : file_info_list)
+	{
+		QString key = file_info.baseName();
+		addIcon(key, key, file_info.absoluteFilePath(), MMCIcon::Builtin);
+	}
+
+	m_watcher.reset(new QFileSystemWatcher());
+	is_watching = false;
+	connect(m_watcher.get(), SIGNAL(directoryChanged(QString)),
+			SLOT(directoryChanged(QString)));
+	connect(m_watcher.get(), SIGNAL(fileChanged(QString)), SLOT(fileChanged(QString)));
+
+	auto setting = MMC->settings()->getSetting("IconsDir");
+	QString path = setting->get().toString();
+	connect(setting.get(), SIGNAL(settingChanged(const Setting &, QVariant)),
+			SLOT(settingChanged(const Setting &, QVariant)));
+	directoryChanged(path);
+}
+
+void IconList::directoryChanged(const QString &path)
+{
+	QDir new_dir (path);
+	if(m_dir.absolutePath() != new_dir.absolutePath())
+	{
+		m_dir.setPath(path);
+		m_dir.refresh();
+		if(is_watching)
+			stopWatching();
+		startWatching();
+	}
+	if(!m_dir.exists())
+		if(!ensureFolderPathExists(m_dir.absolutePath()))
+			return;
+	m_dir.refresh();
+	auto new_list = m_dir.entryList(QDir::Files, QDir::Name);
+	for (auto it = new_list.begin(); it != new_list.end(); it++)
+	{
+		QString &foo = (*it);
+		foo = m_dir.filePath(foo);
+	}
+	auto new_set = new_list.toSet();
+	QList<QString> current_list;
+	for (auto &it : icons)
+	{
+		if (!it.has(MMCIcon::FileBased))
+			continue;
+		current_list.push_back(it.m_images[MMCIcon::FileBased].filename);
+	}
+	QSet<QString> current_set = current_list.toSet();
+
+	QSet<QString> to_remove = current_set;
+	to_remove -= new_set;
+
+	QSet<QString> to_add = new_set;
+	to_add -= current_set;
+
+	for (auto remove : to_remove)
+	{
+		QLOG_INFO() << "Removing " << remove;
+		QFileInfo rmfile(remove);
+		QString key = rmfile.baseName();
+		int idx = getIconIndex(key);
+		if (idx == -1)
+			continue;
+		icons[idx].remove(MMCIcon::FileBased);
+		if (icons[idx].type() == MMCIcon::ToBeDeleted)
+		{
+			beginRemoveRows(QModelIndex(), idx, idx);
+			icons.remove(idx);
+			reindex();
+			endRemoveRows();
+		}
+		else
+		{
+			dataChanged(index(idx), index(idx));
+		}
+		m_watcher->removePath(remove);
+		emit iconUpdated(key);
+	}
+
+	for (auto add : to_add)
+	{
+		QLOG_INFO() << "Adding " << add;
+		QFileInfo addfile(add);
+		QString key = addfile.baseName();
+		if (addIcon(key, QString(), addfile.filePath(), MMCIcon::FileBased))
+		{
+			m_watcher->addPath(add);
+			emit iconUpdated(key);
+		}
+	}
+}
+
+void IconList::fileChanged(const QString &path)
+{
+	QLOG_INFO() << "Checking " << path;
+	QFileInfo checkfile(path);
+	if (!checkfile.exists())
+		return;
+	QString key = checkfile.baseName();
+	int idx = getIconIndex(key);
+	if (idx == -1)
+		return;
+	QIcon icon(path);
+	if (!icon.availableSizes().size())
+		return;
+
+	icons[idx].m_images[MMCIcon::FileBased].icon = icon;
+	dataChanged(index(idx), index(idx));
+	emit iconUpdated(key);
+}
+
+void IconList::settingChanged(const Setting &setting, QVariant value)
+{
+	if(setting.id() != "IconsDir")
+		return;
+
+	directoryChanged(value.toString());
+}
+
+void IconList::startWatching()
+{
+	auto abs_path = m_dir.absolutePath();
+	ensureFolderPathExists(abs_path);
+	is_watching = m_watcher->addPath(abs_path);
+	if (is_watching)
+	{
+		QLOG_INFO() << "Started watching " << abs_path;
+	}
+	else
+	{
+		QLOG_INFO() << "Failed to start watching " << abs_path;
+	}
+}
+
+void IconList::stopWatching()
+{
+	m_watcher->removePaths(m_watcher->files());
+	m_watcher->removePaths(m_watcher->directories());
+	is_watching = false;
+}
+
+QStringList IconList::mimeTypes() const
+{
+	QStringList types;
+	types << "text/uri-list";
+	return types;
+}
+Qt::DropActions IconList::supportedDropActions() const
+{
+	return Qt::CopyAction;
+}
+
+bool IconList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
+							const QModelIndex &parent)
+{
+	if (action == Qt::IgnoreAction)
+		return true;
+	// check if the action is supported
+	if (!data || !(action & supportedDropActions()))
+		return false;
+
+	// files dropped from outside?
+	if (data->hasUrls())
+	{
+		auto urls = data->urls();
+		QStringList iconFiles;
+		for (auto url : urls)
+		{
+			// only local files may be dropped...
+			if (!url.isLocalFile())
+				continue;
+			iconFiles += url.toLocalFile();
+		}
+		installIcons(iconFiles);
+		return true;
+	}
+	return false;
+}
+
+Qt::ItemFlags IconList::flags(const QModelIndex &index) const
+{
+	Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
+	if (index.isValid())
+		return Qt::ItemIsDropEnabled | defaultFlags;
+	else
+		return Qt::ItemIsDropEnabled | defaultFlags;
+}
+
+QVariant IconList::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	int row = index.row();
+
+	if (row < 0 || row >= icons.size())
+		return QVariant();
+
+	switch (role)
+	{
+	case Qt::DecorationRole:
+		return icons[row].icon();
+	case Qt::DisplayRole:
+		return icons[row].name();
+	case Qt::UserRole:
+		return icons[row].m_key;
+	default:
+		return QVariant();
+	}
+}
+
+int IconList::rowCount(const QModelIndex &parent) const
+{
+	return icons.size();
+}
+
+void IconList::installIcons(QStringList iconFiles)
+{
+	for (QString file : iconFiles)
+	{
+		QFileInfo fileinfo(file);
+		if (!fileinfo.isReadable() || !fileinfo.isFile())
+			continue;
+		QString target = PathCombine("icons", fileinfo.fileName());
+
+		QString suffix = fileinfo.suffix();
+		if (suffix != "jpeg" && suffix != "png" && suffix != "jpg" && suffix != "ico")
+			continue;
+
+		if (!QFile::copy(file, target))
+			continue;
+	}
+}
+
+bool IconList::deleteIcon(QString key)
+{
+	int iconIdx = getIconIndex(key);
+	if (iconIdx == -1)
+		return false;
+	auto &iconEntry = icons[iconIdx];
+	if (iconEntry.has(MMCIcon::FileBased))
+	{
+		return QFile::remove(iconEntry.m_images[MMCIcon::FileBased].filename);
+	}
+	return false;
+}
+
+bool IconList::addIcon(QString key, QString name, QString path, MMCIcon::Type type)
+{
+	// replace the icon even? is the input valid?
+	QIcon icon(path);
+	if (!icon.availableSizes().size())
+		return false;
+	auto iter = name_index.find(key);
+	if (iter != name_index.end())
+	{
+		auto &oldOne = icons[*iter];
+		oldOne.replace(type, icon, path);
+		dataChanged(index(*iter), index(*iter));
+		return true;
+	}
+	else
+	{
+		// add a new icon
+		beginInsertRows(QModelIndex(), icons.size(), icons.size());
+		{
+			MMCIcon mmc_icon;
+			mmc_icon.m_name = name;
+			mmc_icon.m_key = key;
+			mmc_icon.replace(type, icon, path);
+			icons.push_back(mmc_icon);
+			name_index[key] = icons.size() - 1;
+		}
+		endInsertRows();
+		return true;
+	}
+}
+
+void IconList::reindex()
+{
+	name_index.clear();
+	int i = 0;
+	for (auto &iter : icons)
+	{
+		name_index[iter.m_key] = i;
+		i++;
+	}
+}
+
+QIcon IconList::getIcon(QString key)
+{
+	int icon_index = getIconIndex(key);
+
+	if (icon_index != -1)
+		return icons[icon_index].icon();
+
+	// Fallback for icons that don't exist.
+	icon_index = getIconIndex("infinity");
+
+	if (icon_index != -1)
+		return icons[icon_index].icon();
+	return QIcon();
+}
+
+int IconList::getIconIndex(QString key)
+{
+	if (key == "default")
+		key = "infinity";
+
+	auto iter = name_index.find(key);
+	if (iter != name_index.end())
+		return *iter;
+
+	return -1;
+}
+
+//#include "IconList.moc"
diff --git a/logic/lists/IconList.h b/logic/icons/IconList.h
index 40ad043b..322411d1 100644
--- a/logic/lists/IconList.h
+++ b/logic/icons/IconList.h
@@ -17,15 +17,21 @@
 
 #include <QMutex>
 #include <QAbstractListModel>
+#include <QFile>
+#include <QDir>
 #include <QtGui/QIcon>
+#include <memory>
+#include "MMCIcon.h"
+#include "setting.h"
 
-class Private;
+class QFileSystemWatcher;
 
 class IconList : public QAbstractListModel
 {
+	Q_OBJECT
 public:
-	IconList();
-	virtual ~IconList();
+	explicit IconList(QObject *parent = 0);
+	virtual ~IconList() {};
 
 	QIcon getIcon(QString key);
 	int getIconIndex(QString key);
@@ -33,7 +39,7 @@ public:
 	virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
 	virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
 
-	bool addIcon(QString key, QString name, QString path, bool is_builtin = false);
+	bool addIcon(QString key, QString name, QString path, MMCIcon::Type type);
 	bool deleteIcon(QString key);
 
 	virtual QStringList mimeTypes() const;
@@ -44,11 +50,28 @@ public:
 
 	void installIcons(QStringList iconFiles);
 
+	void startWatching();
+	void stopWatching();
+
+signals:
+	void iconUpdated(QString key);
+
 private:
 	// hide copy constructor
 	IconList(const IconList &) = delete;
 	// hide assign op
 	IconList &operator=(const IconList &) = delete;
 	void reindex();
-	Private *d;
+
+protected
+slots:
+	void directoryChanged(const QString &path);
+	void fileChanged(const QString &path);
+	void settingChanged(const Setting & setting, QVariant value);
+private:
+	std::shared_ptr<QFileSystemWatcher> m_watcher;
+	bool is_watching;
+	QMap<QString, int> name_index;
+	QVector<MMCIcon> icons;
+	QDir m_dir;
 };
diff --git a/logic/icons/MMCIcon.cpp b/logic/icons/MMCIcon.cpp
new file mode 100644
index 00000000..d721513d
--- /dev/null
+++ b/logic/icons/MMCIcon.cpp
@@ -0,0 +1,89 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "MMCIcon.h"
+#include <QFileInfo>
+
+MMCIcon::Type operator--(MMCIcon::Type &t, int)
+{
+	MMCIcon::Type temp = t;
+	switch (t)
+	{
+	case MMCIcon::Type::Builtin:
+		t = MMCIcon::Type::ToBeDeleted;
+		break;
+	case MMCIcon::Type::Transient:
+		t = MMCIcon::Type::Builtin;
+		break;
+	case MMCIcon::Type::FileBased:
+		t = MMCIcon::Type::Transient;
+		break;
+	default:
+	{
+	}
+	}
+	return temp;
+}
+
+MMCIcon::Type MMCIcon::type() const
+{
+	return m_current_type;
+}
+
+QString MMCIcon::name() const
+{
+	if (m_name.size())
+		return m_name;
+	return m_key;
+}
+
+bool MMCIcon::has(MMCIcon::Type _type) const
+{
+	return m_images[_type].present();
+}
+
+QIcon MMCIcon::icon() const
+{
+	if (m_current_type == Type::ToBeDeleted)
+		return QIcon();
+	return m_images[m_current_type].icon;
+}
+
+void MMCIcon::remove(Type rm_type)
+{
+	m_images[rm_type].filename = QString();
+	m_images[rm_type].icon = QIcon();
+	for (auto iter = rm_type; iter != Type::ToBeDeleted; iter--)
+	{
+		if (m_images[iter].present())
+		{
+			m_current_type = iter;
+			return;
+		}
+	}
+	m_current_type = Type::ToBeDeleted;
+}
+
+void MMCIcon::replace(MMCIcon::Type new_type, QIcon icon, QString path)
+{
+	QFileInfo foo(path);
+	if (new_type > m_current_type || m_current_type == MMCIcon::ToBeDeleted)
+	{
+		m_current_type = new_type;
+	}
+	m_images[new_type].icon = icon;
+	m_images[new_type].changed = foo.lastModified();
+	m_images[new_type].filename = path;
+}
diff --git a/logic/icons/MMCIcon.h b/logic/icons/MMCIcon.h
new file mode 100644
index 00000000..5e4b3bb6
--- /dev/null
+++ b/logic/icons/MMCIcon.h
@@ -0,0 +1,52 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+#include <QString>
+#include <QDateTime>
+#include <QIcon>
+struct MMCImage
+{
+	QIcon icon;
+	QString filename;
+	QDateTime changed;
+	bool present() const
+	{
+		return !icon.isNull();
+	}
+};
+
+struct MMCIcon
+{
+	enum Type : unsigned
+	{
+		Builtin,
+		Transient,
+		FileBased,
+		ICONS_TOTAL,
+		ToBeDeleted
+	};
+	QString m_key;
+	QString m_name;
+	MMCImage m_images[ICONS_TOTAL];
+	Type m_current_type = ToBeDeleted;
+
+	Type type() const;
+	QString name() const;
+	bool has(Type _type) const;
+	QIcon icon() const;
+	void remove(Type rm_type);
+	void replace(Type new_type, QIcon icon, QString path = QString());
+};
diff --git a/logic/lists/ForgeVersionList.cpp b/logic/lists/ForgeVersionList.cpp
index b5e421af..56eca744 100644
--- a/logic/lists/ForgeVersionList.cpp
+++ b/logic/lists/ForgeVersionList.cpp
@@ -15,6 +15,7 @@
 
 #include "ForgeVersionList.h"
 #include <logic/net/NetJob.h>
+#include <logic/net/URLConstants.h>
 #include "MultiMC.h"
 
 #include <QtNetwork>
@@ -23,8 +24,6 @@
 
 #include "logger/QsLog.h"
 
-#define JSON_URL "http://files.minecraftforge.net/minecraftforge/json"
-
 ForgeVersionList::ForgeVersionList(QObject *parent) : BaseVersionList(parent)
 {
 }
@@ -159,44 +158,43 @@ ForgeListLoadTask::ForgeListLoadTask(ForgeVersionList *vlist) : Task()
 
 void ForgeListLoadTask::executeTask()
 {
+	setStatus(tr("Fetching Forge version lists..."));
 	auto job = new NetJob("Version index");
 	// we do not care if the version is stale or not.
 	auto forgeListEntry = MMC->metacache()->resolveEntry("minecraftforge", "list.json");
+	auto gradleForgeListEntry = MMC->metacache()->resolveEntry("minecraftforge", "json");
 
 	// verify by poking the server.
 	forgeListEntry->stale = true;
+	gradleForgeListEntry->stale = true;
+
+	job->addNetAction(listDownload = CacheDownload::make(QUrl(URLConstants::FORGE_LEGACY_URL),
+														 forgeListEntry));
+	job->addNetAction(gradleListDownload = CacheDownload::make(
+						  QUrl(URLConstants::FORGE_GRADLE_URL), gradleForgeListEntry));
+
+	connect(listDownload.get(), SIGNAL(failed(int)), SLOT(listFailed()));
+	connect(gradleListDownload.get(), SIGNAL(failed(int)), SLOT(gradleListFailed()));
 
-	job->addNetAction(CacheDownload::make(QUrl(JSON_URL), forgeListEntry));
 	listJob.reset(job);
-	connect(listJob.get(), SIGNAL(succeeded()), SLOT(list_downloaded()));
-	connect(listJob.get(), SIGNAL(failed()), SLOT(list_failed()));
+	connect(listJob.get(), SIGNAL(succeeded()), SLOT(listDownloaded()));
 	connect(listJob.get(), SIGNAL(progress(qint64, qint64)), SIGNAL(progress(qint64, qint64)));
 	listJob->start();
 }
 
-void ForgeListLoadTask::list_failed()
-{
-	auto DlJob = listJob->first();
-	auto reply = DlJob->m_reply;
-	if (reply)
-	{
-		QLOG_ERROR() << "Getting forge version list failed: " << reply->errorString();
-	}
-	else
-		QLOG_ERROR() << "Getting forge version list failed for reasons unknown.";
-}
-
-void ForgeListLoadTask::list_downloaded()
+bool ForgeListLoadTask::parseForgeList(QList<BaseVersionPtr> &out)
 {
 	QByteArray data;
 	{
-		auto DlJob = listJob->first();
-		auto filename = std::dynamic_pointer_cast<CacheDownload>(DlJob)->m_target_path;
+		auto dlJob = listDownload;
+		auto filename = std::dynamic_pointer_cast<CacheDownload>(dlJob)->m_target_path;
 		QFile listFile(filename);
 		if (!listFile.open(QIODevice::ReadOnly))
-			return;
+		{
+			return false;
+		}
 		data = listFile.readAll();
-		DlJob.reset();
+		dlJob.reset();
 	}
 
 	QJsonParseError jsonError;
@@ -205,13 +203,13 @@ void ForgeListLoadTask::list_downloaded()
 	if (jsonError.error != QJsonParseError::NoError)
 	{
 		emitFailed("Error parsing version list JSON:" + jsonError.errorString());
-		return;
+		return false;
 	}
 
 	if (!jsonDoc.isObject())
 	{
-		emitFailed("Error parsing version list JSON: jsonDoc is not an object");
-		return;
+		emitFailed("Error parsing version list JSON: JSON root is not an object");
+		return false;
 	}
 
 	QJsonObject root = jsonDoc.object();
@@ -221,11 +219,10 @@ void ForgeListLoadTask::list_downloaded()
 	{
 		emitFailed(
 			"Error parsing version list JSON: version list object is missing 'builds' array");
-		return;
+		return false;
 	}
 	QJsonArray builds = root.value("builds").toArray();
 
-	QList<BaseVersionPtr> tempList;
 	for (int i = 0; i < builds.count(); i++)
 	{
 		// Load the version info.
@@ -246,7 +243,9 @@ void ForgeListLoadTask::list_downloaded()
 		for (int j = 0; j < files.count(); j++)
 		{
 			if (!files[j].isObject())
+			{
 				continue;
+			}
 			QJsonObject file = files[j].toObject();
 			buildtype = file.value("buildtype").toString();
 			if ((buildtype == "client" || buildtype == "universal") && !valid)
@@ -262,7 +261,9 @@ void ForgeListLoadTask::list_downloaded()
 			{
 				QString ext = file.value("ext").toString();
 				if (ext.isEmpty())
+				{
 					continue;
+				}
 				changelog_url = file.value("url").toString();
 			}
 			else if (buildtype == "installer")
@@ -282,15 +283,161 @@ void ForgeListLoadTask::list_downloaded()
 			fVersion->jobbuildver = jobbuildver;
 			fVersion->mcver = mcver;
 			if (installer_filename.isEmpty())
+			{
 				fVersion->filename = filename;
+			}
 			else
+			{
 				fVersion->filename = installer_filename;
+			}
 			fVersion->m_buildnr = build_nr;
-			tempList.append(fVersion);
+			out.append(fVersion);
+		}
+	}
+
+	return true;
+}
+
+bool ForgeListLoadTask::parseForgeGradleList(QList<BaseVersionPtr> &out)
+{
+	QByteArray data;
+	{
+		auto dlJob = gradleListDownload;
+		auto filename = std::dynamic_pointer_cast<CacheDownload>(dlJob)->m_target_path;
+		QFile listFile(filename);
+		if (!listFile.open(QIODevice::ReadOnly))
+		{
+			return false;
+		}
+		data = listFile.readAll();
+		dlJob.reset();
+	}
+
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+
+	if (jsonError.error != QJsonParseError::NoError)
+	{
+		emitFailed("Error parsing gradle version list JSON:" + jsonError.errorString());
+		return false;
+	}
+
+	if (!jsonDoc.isObject())
+	{
+		emitFailed("Error parsing gradle version list JSON: JSON root is not an object");
+		return false;
+	}
+
+	QJsonObject root = jsonDoc.object();
+
+	// we probably could hard code these, but it might still be worth doing it this way
+	const QString webpath = root.value("webpath").toString();
+	const QString artifact = root.value("artifact").toString();
+
+	QJsonObject numbers = root.value("number").toObject();
+	for (auto it = numbers.begin(); it != numbers.end(); ++it)
+	{
+		QJsonObject number = it.value().toObject();
+		std::shared_ptr<ForgeVersion> fVersion(new ForgeVersion());
+		fVersion->m_buildnr = number.value("build").toDouble();
+		fVersion->jobbuildver = number.value("version").toString();
+		fVersion->mcver = number.value("mcversion").toString();
+		fVersion->filename = "";
+		QString filename, installer_filename;
+		QJsonArray files = number.value("files").toArray();
+		for (auto fIt = files.begin(); fIt != files.end(); ++fIt)
+		{
+			// TODO with gradle we also get checksums, use them
+			QJsonArray file = (*fIt).toArray();
+			if (file.size() < 3)
+			{
+				continue;
+			}
+			if (file.at(1).toString() == "installer")
+			{
+				fVersion->installer_url = QString("%1/%2-%3/%4-%2-%3-installer.%5").arg(
+					webpath, fVersion->mcver, fVersion->jobbuildver, artifact,
+					file.at(0).toString());
+				installer_filename = QString("%1-%2-%3-installer.%4").arg(
+					artifact, fVersion->mcver, fVersion->jobbuildver, file.at(0).toString());
+			}
+			else if (file.at(1).toString() == "universal")
+			{
+				fVersion->universal_url = QString("%1/%2-%3/%4-%2-%3-universal.%5").arg(
+					webpath, fVersion->mcver, fVersion->jobbuildver, artifact,
+					file.at(0).toString());
+				filename = QString("%1-%2-%3-universal.%4").arg(
+					artifact, fVersion->mcver, fVersion->jobbuildver, file.at(0).toString());
+			}
+			else if (file.at(1).toString() == "changelog")
+			{
+				fVersion->changelog_url = QString("%1/%2-%3/%4-%2-%3-changelog.%5").arg(
+					webpath, fVersion->mcver, fVersion->jobbuildver, artifact,
+					file.at(0).toString());
+			}
+		}
+		if (fVersion->installer_url.isEmpty() && fVersion->universal_url.isEmpty())
+		{
+			continue;
 		}
+		fVersion->filename = fVersion->installer_url.isEmpty() ? filename : installer_filename;
+		out.append(fVersion);
 	}
-	m_list->updateListData(tempList);
+
+	return true;
+}
+
+void ForgeListLoadTask::listDownloaded()
+{
+	QList<BaseVersionPtr> list;
+	bool ret = true;
+	if (!parseForgeList(list))
+	{
+		ret = false;
+	}
+	if (!parseForgeGradleList(list))
+	{
+		ret = false;
+	}
+
+	if (!ret)
+	{
+		return;
+	}
+
+	qSort(list.begin(), list.end(), [](const BaseVersionPtr & p1, const BaseVersionPtr & p2)
+	{
+		// TODO better comparison (takes major/minor/build number into account)
+		return p1->name() > p2->name();
+	});
+
+	m_list->updateListData(list);
 
 	emitSucceeded();
 	return;
 }
+
+void ForgeListLoadTask::listFailed()
+{
+	auto reply = listDownload->m_reply;
+	if (reply)
+	{
+		QLOG_ERROR() << "Getting forge version list failed: " << reply->errorString();
+	}
+	else
+	{
+		QLOG_ERROR() << "Getting forge version list failed for reasons unknown.";
+	}
+}
+void ForgeListLoadTask::gradleListFailed()
+{
+	auto reply = gradleListDownload->m_reply;
+	if (reply)
+	{
+		QLOG_ERROR() << "Getting forge version list failed: " << reply->errorString();
+	}
+	else
+	{
+		QLOG_ERROR() << "Getting forge version list failed for reasons unknown.";
+	}
+}
diff --git a/logic/lists/ForgeVersionList.h b/logic/lists/ForgeVersionList.h
index bf9e87b2..924084ae 100644
--- a/logic/lists/ForgeVersionList.h
+++ b/logic/lists/ForgeVersionList.h
@@ -80,7 +80,7 @@ public:
 protected:
 	QList<BaseVersionPtr> m_vlist;
 
-	bool m_loaded;
+	bool m_loaded = false;
 
 protected
 slots:
@@ -98,10 +98,18 @@ public:
 
 protected
 slots:
-	void list_downloaded();
-	void list_failed();
+	void listDownloaded();
+	void listFailed();
+	void gradleListFailed();
 
 protected:
 	NetJobPtr listJob;
 	ForgeVersionList *m_list;
+
+	CacheDownloadPtr listDownload;
+	CacheDownloadPtr gradleListDownload;
+
+private:
+	bool parseForgeList(QList<BaseVersionPtr> &out);
+	bool parseForgeGradleList(QList<BaseVersionPtr> &out);
 };
diff --git a/logic/lists/IconList.cpp b/logic/lists/IconList.cpp
deleted file mode 100644
index ecfb8c3c..00000000
--- a/logic/lists/IconList.cpp
+++ /dev/null
@@ -1,271 +0,0 @@
-/* Copyright 2013 MultiMC Contributors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "IconList.h"
-#include <pathutils.h>
-#include <QMap>
-#include <QEventLoop>
-#include <QDir>
-#include <QMimeData>
-#include <QUrl>
-#define MAX_SIZE 1024
-
-struct entry
-{
-	QString key;
-	QString name;
-	QIcon icon;
-	bool is_builtin;
-	QString filename;
-};
-
-class Private : public QObject
-{
-	Q_OBJECT
-public:
-	QMap<QString, int> index;
-	QVector<entry> icons;
-	Private()
-	{
-	}
-};
-
-IconList::IconList() : QAbstractListModel(), d(new Private())
-{
-	QDir instance_icons(":/icons/instances/");
-	auto file_info_list = instance_icons.entryInfoList(QDir::Files, QDir::Name);
-	for (auto file_info : file_info_list)
-	{
-		QString key = file_info.baseName();
-		addIcon(key, key, file_info.absoluteFilePath(), true);
-	}
-
-	// FIXME: get from settings
-	ensureFolderPathExists("icons");
-	QDir user_icons("icons");
-	file_info_list = user_icons.entryInfoList(QDir::Files, QDir::Name);
-	for (auto file_info : file_info_list)
-	{
-		QString filename = file_info.absoluteFilePath();
-		QString key = file_info.baseName();
-		addIcon(key, key, filename);
-	}
-}
-
-IconList::~IconList()
-{
-	delete d;
-	d = nullptr;
-}
-
-QStringList IconList::mimeTypes() const
-{
-	QStringList types;
-	types << "text/uri-list";
-	return types;
-}
-Qt::DropActions IconList::supportedDropActions() const
-{
-	return Qt::CopyAction;
-}
-
-bool IconList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column,
-							const QModelIndex &parent)
-{
-	if (action == Qt::IgnoreAction)
-		return true;
-	// check if the action is supported
-	if (!data || !(action & supportedDropActions()))
-		return false;
-
-	// files dropped from outside?
-	if (data->hasUrls())
-	{
-		/*
-		bool was_watching = is_watching;
-		if(was_watching)
-			stopWatching();
-		*/
-		auto urls = data->urls();
-		QStringList iconFiles;
-		for (auto url : urls)
-		{
-			// only local files may be dropped...
-			if (!url.isLocalFile())
-				continue;
-			iconFiles += url.toLocalFile();
-		}
-		installIcons(iconFiles);
-		/*
-		if(was_watching)
-			startWatching();
-		*/
-		return true;
-	}
-	return false;
-}
-
-Qt::ItemFlags IconList::flags(const QModelIndex &index) const
-{
-	Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
-	if (index.isValid())
-		return Qt::ItemIsDropEnabled | defaultFlags;
-	else
-		return Qt::ItemIsDropEnabled | defaultFlags;
-}
-
-QVariant IconList::data(const QModelIndex &index, int role) const
-{
-	if (!index.isValid())
-		return QVariant();
-
-	int row = index.row();
-
-	if (row < 0 || row >= d->icons.size())
-		return QVariant();
-
-	switch (role)
-	{
-	case Qt::DecorationRole:
-		return d->icons[row].icon;
-	case Qt::DisplayRole:
-		return d->icons[row].name;
-	case Qt::UserRole:
-		return d->icons[row].key;
-	default:
-		return QVariant();
-	}
-}
-
-int IconList::rowCount(const QModelIndex &parent) const
-{
-	return d->icons.size();
-}
-
-void IconList::installIcons(QStringList iconFiles)
-{
-	for (QString file : iconFiles)
-	{
-		QFileInfo fileinfo(file);
-		if (!fileinfo.isReadable() || !fileinfo.isFile())
-			continue;
-		QString target = PathCombine("icons", fileinfo.fileName());
-
-		QString suffix = fileinfo.suffix();
-		if (suffix != "jpeg" && suffix != "png" && suffix != "jpg")
-			continue;
-
-		if (!QFile::copy(file, target))
-			continue;
-
-		QString key = fileinfo.baseName();
-		addIcon(key, key, target);
-	}
-}
-
-bool IconList::deleteIcon(QString key)
-{
-	int iconIdx = getIconIndex(key);
-	if (iconIdx == -1)
-		return false;
-	auto &iconEntry = d->icons[iconIdx];
-	if (iconEntry.is_builtin)
-		return false;
-	if (QFile::remove(iconEntry.filename))
-	{
-		beginRemoveRows(QModelIndex(), iconIdx, iconIdx);
-		d->icons.remove(iconIdx);
-		reindex();
-		endRemoveRows();
-	}
-	return true;
-}
-
-bool IconList::addIcon(QString key, QString name, QString path, bool is_builtin)
-{
-	auto iter = d->index.find(key);
-	if (iter != d->index.end())
-	{
-		if (d->icons[*iter].is_builtin)
-			return false;
-
-		QIcon icon(path);
-		if (icon.isNull())
-			return false;
-
-		auto &oldOne = d->icons[*iter];
-
-		if (!QFile::remove(oldOne.filename))
-			return false;
-
-		// replace the icon
-		oldOne = {key, name, icon, is_builtin, path};
-		dataChanged(index(*iter), index(*iter));
-		return true;
-	}
-	else
-	{
-		QIcon icon(path);
-		if (icon.isNull())
-			return false;
-
-		// add a new icon
-		beginInsertRows(QModelIndex(), d->icons.size(), d->icons.size());
-		d->icons.push_back({key, name, icon, is_builtin, path});
-		d->index[key] = d->icons.size() - 1;
-		endInsertRows();
-		return true;
-	}
-}
-
-void IconList::reindex()
-{
-	d->index.clear();
-	int i = 0;
-	for (auto &iter : d->icons)
-	{
-		d->index[iter.key] = i;
-		i++;
-	}
-}
-
-QIcon IconList::getIcon(QString key)
-{
-	int icon_index = getIconIndex(key);
-
-	if (icon_index != -1)
-		return d->icons[icon_index].icon;
-
-	// Fallback for icons that don't exist.
-	icon_index = getIconIndex("infinity");
-
-	if (icon_index != -1)
-		return d->icons[icon_index].icon;
-	return QIcon();
-}
-
-int IconList::getIconIndex(QString key)
-{
-	if (key == "default")
-		key = "infinity";
-
-	auto iter = d->index.find(key);
-	if (iter != d->index.end())
-		return *iter;
-
-	return -1;
-}
-
-#include "IconList.moc"
\ No newline at end of file
diff --git a/logic/lists/InstanceList.cpp b/logic/lists/InstanceList.cpp
index 15fd10ba..48a2865a 100644
--- a/logic/lists/InstanceList.cpp
+++ b/logic/lists/InstanceList.cpp
@@ -22,11 +22,14 @@
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QJsonArray>
+#include <QXmlStreamReader>
+#include <QRegularExpression>
 #include <pathutils.h>
 
 #include "MultiMC.h"
 #include "logic/lists/InstanceList.h"
-#include "logic/lists/IconList.h"
+#include "logic/icons/IconList.h"
+#include "logic/lists/MinecraftVersionList.h"
 #include "logic/BaseInstance.h"
 #include "logic/InstanceFactory.h"
 #include "logger/QsLog.h"
@@ -42,6 +45,9 @@ InstanceList::InstanceList(const QString &instDir, QObject *parent)
 	{
 		QDir::current().mkpath(m_instDir);
 	}
+
+	connect(MMC->minecraftlist().get(), &MinecraftVersionList::modelReset, this,
+			&InstanceList::loadList);
 }
 
 InstanceList::~InstanceList()
@@ -276,66 +282,155 @@ void InstanceList::loadGroupList(QMap<QString, QString> &groupMap)
 	}
 }
 
-InstanceList::InstListError InstanceList::loadList()
+struct FTBRecord
 {
-	// load the instance groups
-	QMap<QString, QString> groupMap;
-	loadGroupList(groupMap);
+	QString dir;
+	QString name;
+	QString logo;
+	QString mcVersion;
+	QString description;
+};
+
+void InstanceList::loadForgeInstances(QMap<QString, QString> groupMap)
+{
+	QList<FTBRecord> records;
+	QDir dir = QDir(MMC->settings()->get("FTBLauncherRoot").toString());
+	QDir dataDir = QDir(MMC->settings()->get("FTBRoot").toString());
+	if (!dir.exists())
+	{
+		QLOG_INFO() << "The FTB launcher directory specified does not exist. Please check your "
+					   "settings.";
+		return;
+	}
+	else if (!dataDir.exists())
+	{
+		QLOG_INFO() << "The FTB directory specified does not exist. Please check your settings";
+		return;
+	}
 
-	beginResetModel();
+	dir.cd("ModPacks");
+	QFile f(dir.absoluteFilePath("modpacks.xml"));
+	if (!f.open(QFile::ReadOnly))
+		return;
 
-	m_instances.clear();
-	QDir dir(m_instDir);
-	QDirIterator iter(m_instDir, QDir::Dirs | QDir::NoDot | QDir::NoDotDot | QDir::Readable,
-					  QDirIterator::FollowSymlinks);
-	while (iter.hasNext())
+	// read the FTB packs XML.
+	QXmlStreamReader reader(&f);
+	while (!reader.atEnd())
 	{
-		QString subDir = iter.next();
-		if (!QFileInfo(PathCombine(subDir, "instance.cfg")).exists())
+		switch (reader.readNext())
+		{
+		case QXmlStreamReader::StartElement:
+		{
+			if (reader.name() == "modpack")
+			{
+				QXmlStreamAttributes attrs = reader.attributes();
+				FTBRecord record;
+				record.dir = attrs.value("dir").toString();
+				record.name = attrs.value("name").toString();
+				record.logo = attrs.value("logo").toString();
+				record.mcVersion = attrs.value("mcVersion").toString();
+				record.description = attrs.value("description").toString();
+				records.append(record);
+			}
+			break;
+		}
+		case QXmlStreamReader::EndElement:
+			break;
+		case QXmlStreamReader::Characters:
+			break;
+		default:
+			break;
+		}
+	}
+	f.close();
+
+	// process the records we acquired.
+	for (auto record : records)
+	{
+		auto instanceDir = dataDir.absoluteFilePath(record.dir);
+		auto templateDir = dir.absoluteFilePath(record.dir);
+		if (!QFileInfo(instanceDir).exists())
+		{
 			continue;
+		}
 
-		BaseInstance *instPtr = NULL;
-		auto &loader = InstanceFactory::get();
-		auto error = loader.loadInstance(instPtr, subDir);
+		QString iconKey = record.logo;
+		iconKey.remove(QRegularExpression("\\..*"));
+		MMC->icons()->addIcon(iconKey, iconKey, PathCombine(templateDir, record.logo),
+							  MMCIcon::Transient);
 
-		if (error != InstanceFactory::NoLoadError && error != InstanceFactory::NotAnInstance)
+		if (!QFileInfo(PathCombine(instanceDir, "instance.cfg")).exists())
 		{
-			QString errorMsg = QString("Failed to load instance %1: ")
-								   .arg(QFileInfo(subDir).baseName())
-								   .toUtf8();
-
-			switch (error)
+			BaseInstance *instPtr = NULL;
+			auto &factory = InstanceFactory::get();
+			auto version = MMC->minecraftlist()->findVersion(record.mcVersion);
+			if (!version)
 			{
-			default:
-				errorMsg += QString("Unknown instance loader error %1").arg(error);
-				break;
+				QLOG_ERROR() << "Can't load instance " << instanceDir
+							 << " because minecraft version " << record.mcVersion
+							 << " can't be resolved.";
+				continue;
 			}
-			QLOG_ERROR() << errorMsg.toUtf8();
+			auto error = factory.createInstance(instPtr, version, instanceDir,
+												InstanceFactory::FTBInstance);
+
+			if (!instPtr || error != InstanceFactory::NoCreateError)
+				continue;
+
+			instPtr->setGroupInitial("FTB");
+			instPtr->setName(record.name);
+			instPtr->setIconKey(iconKey);
+			instPtr->setIntendedVersionId(record.mcVersion);
+			instPtr->setNotes(record.description);
+			continueProcessInstance(instPtr, error, instanceDir, groupMap);
 		}
-		else if (!instPtr)
+		else
 		{
-			QLOG_ERROR() << QString("Error loading instance %1. Instance loader returned null.")
-								.arg(QFileInfo(subDir).baseName())
-								.toUtf8();
+			BaseInstance *instPtr = NULL;
+			auto error = InstanceFactory::get().loadInstance(instPtr, instanceDir);
+			if (!instPtr || error != InstanceFactory::NoCreateError)
+				continue;
+			instPtr->setGroupInitial("FTB");
+			instPtr->setName(record.name);
+			instPtr->setIconKey(iconKey);
+			if (instPtr->intendedVersionId() != record.mcVersion)
+				instPtr->setIntendedVersionId(record.mcVersion);
+			instPtr->setNotes(record.description);
+			continueProcessInstance(instPtr, error, instanceDir, groupMap);
 		}
-		else
+	}
+}
+
+InstanceList::InstListError InstanceList::loadList()
+{
+	// load the instance groups
+	QMap<QString, QString> groupMap;
+	loadGroupList(groupMap);
+
+	beginResetModel();
+
+	m_instances.clear();
+
+	{
+		QDirIterator iter(m_instDir, QDir::Dirs | QDir::NoDot | QDir::NoDotDot | QDir::Readable,
+						  QDirIterator::FollowSymlinks);
+		while (iter.hasNext())
 		{
-			std::shared_ptr<BaseInstance> inst(instPtr);
-			auto iter = groupMap.find(inst->id());
-			if (iter != groupMap.end())
-			{
-				inst->setGroupInitial((*iter));
-			}
-			QLOG_INFO() << "Loaded instance " << inst->name();
-			inst->setParent(this);
-			m_instances.append(inst);
-			connect(instPtr, SIGNAL(propertiesChanged(BaseInstance *)), this,
-					SLOT(propertiesChanged(BaseInstance *)));
-			connect(instPtr, SIGNAL(groupChanged()), this, SLOT(groupChanged()));
-			connect(instPtr, SIGNAL(nuked(BaseInstance *)), this,
-					SLOT(instanceNuked(BaseInstance *)));
+			QString subDir = iter.next();
+			if (!QFileInfo(PathCombine(subDir, "instance.cfg")).exists())
+				continue;
+
+			BaseInstance *instPtr = NULL;
+			auto error = InstanceFactory::get().loadInstance(instPtr, subDir);
+			continueProcessInstance(instPtr, error, subDir, groupMap);
 		}
 	}
+
+	if (MMC->settings()->get("TrackFTBInstances").toBool())
+	{
+		loadForgeInstances(groupMap);
+	}
+
 	endResetModel();
 	emit dataIsInvalid();
 	return NoError;
@@ -409,6 +504,47 @@ int InstanceList::getInstIndex(BaseInstance *inst) const
 	return -1;
 }
 
+void InstanceList::continueProcessInstance(BaseInstance *instPtr, const int error,
+										   const QDir &dir, QMap<QString, QString> &groupMap)
+{
+	if (error != InstanceFactory::NoLoadError && error != InstanceFactory::NotAnInstance)
+	{
+		QString errorMsg = QString("Failed to load instance %1: ")
+							   .arg(QFileInfo(dir.absolutePath()).baseName())
+							   .toUtf8();
+
+		switch (error)
+		{
+		default:
+			errorMsg += QString("Unknown instance loader error %1").arg(error);
+			break;
+		}
+		QLOG_ERROR() << errorMsg.toUtf8();
+	}
+	else if (!instPtr)
+	{
+		QLOG_ERROR() << QString("Error loading instance %1. Instance loader returned null.")
+							.arg(QFileInfo(dir.absolutePath()).baseName())
+							.toUtf8();
+	}
+	else
+	{
+		auto iter = groupMap.find(instPtr->id());
+		if (iter != groupMap.end())
+		{
+			instPtr->setGroupInitial((*iter));
+		}
+		QLOG_INFO() << "Loaded instance " << instPtr->name();
+		instPtr->setParent(this);
+		m_instances.append(std::shared_ptr<BaseInstance>(instPtr));
+		connect(instPtr, SIGNAL(propertiesChanged(BaseInstance *)), this,
+				SLOT(propertiesChanged(BaseInstance *)));
+		connect(instPtr, SIGNAL(groupChanged()), this, SLOT(groupChanged()));
+		connect(instPtr, SIGNAL(nuked(BaseInstance *)), this,
+				SLOT(instanceNuked(BaseInstance *)));
+	}
+}
+
 void InstanceList::instanceNuked(BaseInstance *inst)
 {
 	int i = getInstIndex(inst);
diff --git a/logic/lists/InstanceList.h b/logic/lists/InstanceList.h
index f23b7763..0ce808e5 100644
--- a/logic/lists/InstanceList.h
+++ b/logic/lists/InstanceList.h
@@ -25,6 +25,8 @@
 
 class BaseInstance;
 
+class QDir;
+
 class InstanceList : public QAbstractListModel
 {
 	Q_OBJECT
@@ -66,11 +68,6 @@ public:
 	}
 
 	/*!
-	 * \brief Loads the instance list. Triggers notifications.
-	 */
-	InstListError loadList();
-
-	/*!
 	 * \brief Get the instance at index
 	 */
 	InstancePtr at(int i) const
@@ -108,6 +105,12 @@ public
 slots:
 	void on_InstFolderChanged(const Setting &setting, QVariant value);
 
+	/*!
+	 * \brief Loads the instance list. Triggers notifications.
+	 */
+	InstListError loadList();
+	void loadForgeInstances(QMap<QString, QString> groupMap);
+
 private
 slots:
 	void propertiesChanged(BaseInstance *inst);
@@ -117,6 +120,9 @@ slots:
 private:
 	int getInstIndex(BaseInstance *inst) const;
 
+	void continueProcessInstance(BaseInstance *instPtr, const int error, const QDir &dir,
+								 QMap<QString, QString> &groupMap);
+
 protected:
 	QString m_instDir;
 	QList<InstancePtr> m_instances;
diff --git a/logic/lists/JavaVersionList.cpp b/logic/lists/JavaVersionList.cpp
index d2f0972c..e8c5acd0 100644
--- a/logic/lists/JavaVersionList.cpp
+++ b/logic/lists/JavaVersionList.cpp
@@ -172,14 +172,14 @@ JavaListLoadTask::~JavaListLoadTask()
 
 void JavaListLoadTask::executeTask()
 {
-	setStatus("Detecting Java installations...");
+	setStatus(tr("Detecting Java installations..."));
 
 	JavaUtils ju;
 	QList<QString> candidate_paths = ju.FindJavaPaths();
 
-	auto job = new JavaCheckerJob("Java detection");
-	connect(job, SIGNAL(finished(QList<JavaCheckResult>)), this, SLOT(javaCheckerFinished(QList<JavaCheckResult>)));
-	connect(job, SIGNAL(progress(int, int)), this, SLOT(checkerProgress(int, int)));
+	m_job = std::shared_ptr<JavaCheckerJob>(new JavaCheckerJob("Java detection"));
+	connect(m_job.get(), SIGNAL(finished(QList<JavaCheckResult>)), this, SLOT(javaCheckerFinished(QList<JavaCheckResult>)));
+	connect(m_job.get(), SIGNAL(progress(int, int)), this, SLOT(checkerProgress(int, int)));
 
 	QLOG_DEBUG() << "Probing the following Java paths: ";
 	for(QString candidate : candidate_paths)
@@ -188,10 +188,10 @@ void JavaListLoadTask::executeTask()
 
 		auto candidate_checker = new JavaChecker();
 		candidate_checker->path = candidate;
-		job->addJavaCheckerAction(JavaCheckerPtr(candidate_checker));
+		m_job->addJavaCheckerAction(JavaCheckerPtr(candidate_checker));
 	}
 
-	job->start();
+	m_job->start();
 }
 
 void JavaListLoadTask::checkerProgress(int current, int total)
@@ -203,6 +203,7 @@ void JavaListLoadTask::checkerProgress(int current, int total)
 void JavaListLoadTask::javaCheckerFinished(QList<JavaCheckResult> results)
 {
 	QList<JavaVersionPtr> candidates;
+	m_job.reset();
 
 	QLOG_DEBUG() << "Found the following valid Java installations:";
 	for(JavaCheckResult result : results)
diff --git a/logic/lists/JavaVersionList.h b/logic/lists/JavaVersionList.h
index 879b2480..e6cc8e5f 100644
--- a/logic/lists/JavaVersionList.h
+++ b/logic/lists/JavaVersionList.h
@@ -90,6 +90,7 @@ public slots:
 	void checkerProgress(int current, int total);
 
 protected:
+	std::shared_ptr<JavaCheckerJob> m_job;
 	JavaVersionList *m_list;
 	JavaVersion *m_currentRecommended;
 };
diff --git a/logic/lists/MinecraftVersionList.cpp b/logic/lists/MinecraftVersionList.cpp
index 523b81ac..91f86df0 100644
--- a/logic/lists/MinecraftVersionList.cpp
+++ b/logic/lists/MinecraftVersionList.cpp
@@ -139,7 +139,7 @@ MCVListLoadTask::~MCVListLoadTask()
 
 void MCVListLoadTask::executeTask()
 {
-	setStatus("Loading instance version list...");
+	setStatus(tr("Loading instance version list..."));
 	auto worker = MMC->qnam();
 	vlistReply = worker->get(QNetworkRequest(QUrl("http://" + URLConstants::AWS_DOWNLOAD_VERSIONS + "versions.json")));
 	connect(vlistReply, SIGNAL(finished()), this, SLOT(list_downloaded()));
diff --git a/logic/net/ForgeXzDownload.cpp b/logic/net/ForgeXzDownload.cpp
index 1771d304..359ad858 100644
--- a/logic/net/ForgeXzDownload.cpp
+++ b/logic/net/ForgeXzDownload.cpp
@@ -20,6 +20,7 @@
 #include <QCryptographicHash>
 #include <QFileInfo>
 #include <QDateTime>
+#include <QDir>
 #include "logger/QsLog.h"
 
 ForgeXzDownload::ForgeXzDownload(QString relative_path, MetaEntryPtr entry) : NetAction()
@@ -310,16 +311,51 @@ void ForgeXzDownload::decompressAndInstall()
 	m_pack200_xz_file.remove();
 
 	// revert pack200
-	pack200_file.close();
-	QString pack_name = pack200_file.fileName();
+	pack200_file.seek(0);
+	int handle_in = pack200_file.handle();
+	// FIXME: dispose of file handles, pointers and the like. Ideally wrap in objects.
+	if(handle_in == -1)
+	{
+		QLOG_ERROR() << "Error reopening " << pack200_file.fileName();
+		failAndTryNextMirror();
+		return;
+	}
+	FILE * file_in = fdopen(handle_in,"r");
+	if(!file_in)
+	{
+		QLOG_ERROR() << "Error reopening " << pack200_file.fileName();
+		failAndTryNextMirror();
+		return;
+	}
+	QFile qfile_out(m_target_path);
+	if(!qfile_out.open(QIODevice::WriteOnly))
+	{
+		QLOG_ERROR() << "Error opening " << qfile_out.fileName();
+		failAndTryNextMirror();
+		return;
+	}
+	int handle_out = qfile_out.handle();
+	if(handle_out == -1)
+	{
+		QLOG_ERROR() << "Error opening " << qfile_out.fileName();
+		failAndTryNextMirror();
+		return;
+	}
+	FILE * file_out = fdopen(handle_out,"w");
+	if(!file_out)
+	{
+		QLOG_ERROR() << "Error opening " << qfile_out.fileName();
+		failAndTryNextMirror();
+		return;
+	}
 	try
 	{
-		unpack_200(pack_name.toStdString(), m_target_path.toStdString());
+		unpack_200(file_in, file_out);
 	}
 	catch (std::runtime_error &err)
 	{
 		m_status = Job_Failed;
-		QLOG_ERROR() << "Error unpacking " << pack_name.toUtf8() << " : " << err.what();
+		QLOG_ERROR() << "Error unpacking " << pack200_file.fileName() << " : " << err.what();
 		QFile f(m_target_path);
 		if (f.exists())
 			f.remove();
diff --git a/logic/net/MD5EtagDownload.cpp b/logic/net/MD5EtagDownload.cpp
index 435e854e..63583e8d 100644
--- a/logic/net/MD5EtagDownload.cpp
+++ b/logic/net/MD5EtagDownload.cpp
@@ -23,7 +23,6 @@ MD5EtagDownload::MD5EtagDownload(QUrl url, QString target_path) : NetAction()
 {
 	m_url = url;
 	m_target_path = target_path;
-	m_check_md5 = false;
 	m_status = Job_NotStarted;
 }
 
@@ -34,22 +33,26 @@ void MD5EtagDownload::start()
 	// if there already is a file and md5 checking is in effect and it can be opened
 	if (m_output_file.exists() && m_output_file.open(QIODevice::ReadOnly))
 	{
-		// check the md5 against the expected one
-		QString hash =
+		// get the md5 of the local file.
+		m_local_md5 =
 			QCryptographicHash::hash(m_output_file.readAll(), QCryptographicHash::Md5)
 				.toHex()
 				.constData();
 		m_output_file.close();
-		// skip this file if they match
-		if (m_check_md5 && hash == m_expected_md5)
+		// if we are expecting some md5sum, compare it with the local one
+		if (!m_expected_md5.isEmpty())
 		{
-			QLOG_INFO() << "Skipping " << m_url.toString() << ": md5 match.";
-			emit succeeded(m_index_within_job);
-			return;
+			// skip if they match
+			if(m_local_md5 == m_expected_md5)
+			{
+				QLOG_INFO() << "Skipping " << m_url.toString() << ": md5 match.";
+				emit succeeded(m_index_within_job);
+				return;
+			}
 		}
 		else
 		{
-			m_expected_md5 = hash;
+			// no expected md5. we use the local md5sum as an ETag
 		}
 	}
 	if (!ensureFilePathExists(filename))
@@ -58,9 +61,18 @@ void MD5EtagDownload::start()
 		return;
 	}
 
-	QLOG_INFO() << "Downloading " << m_url.toString() << " expecting " << m_expected_md5;
 	QNetworkRequest request(m_url);
-	request.setRawHeader(QString("If-None-Match").toLatin1(), m_expected_md5.toLatin1());
+
+	QLOG_INFO() << "Downloading " << m_url.toString() << " got " << m_local_md5;
+
+	if(!m_local_md5.isEmpty())
+	{
+		QLOG_INFO() << "Got " << m_local_md5;
+		request.setRawHeader(QString("If-None-Match").toLatin1(), m_local_md5.toLatin1());
+	}
+	if(!m_expected_md5.isEmpty())
+		QLOG_INFO() << "Expecting " << m_expected_md5;
+
 	request.setHeader(QNetworkRequest::UserAgentHeader, "MultiMC/5.0 (Uncached)");
 
 	// Go ahead and try to open the file.
@@ -107,7 +119,10 @@ void MD5EtagDownload::downloadFinished()
 		m_status = Job_Finished;
 		m_output_file.close();
 
+		// FIXME: compare with the real written data md5sum
+		// this is just an ETag
 		QLOG_INFO() << "Finished " << m_url.toString() << " got " << m_reply->rawHeader("ETag").constData();
+
 		m_reply.reset();
 		emit succeeded(m_index_within_job);
 		return;
@@ -116,6 +131,7 @@ void MD5EtagDownload::downloadFinished()
 	else
 	{
 		m_output_file.close();
+		m_output_file.remove();
 		m_reply.reset();
 		emit failed(m_index_within_job);
 		return;
diff --git a/logic/net/MD5EtagDownload.h b/logic/net/MD5EtagDownload.h
index 416ab9de..d5aed0ca 100644
--- a/logic/net/MD5EtagDownload.h
+++ b/logic/net/MD5EtagDownload.h
@@ -23,12 +23,10 @@ class MD5EtagDownload : public NetAction
 {
 	Q_OBJECT
 public:
-	/// if true, check the md5sum against a provided md5sum
-	/// also, if a file exists, perform an md5sum first and don't download only if they don't
-	/// match
-	bool m_check_md5;
-	/// the expected md5 checksum
+	/// the expected md5 checksum. Only set from outside
 	QString m_expected_md5;
+	/// the md5 checksum of a file that already exists.
+	QString m_local_md5;
 	/// if saving to file, use the one specified in this string
 	QString m_target_path;
 	/// this is the output file, if any
diff --git a/logic/net/URLConstants.h b/logic/net/URLConstants.h
index dcd5c2b1..9579198d 100644
--- a/logic/net/URLConstants.h
+++ b/logic/net/URLConstants.h
@@ -29,4 +29,6 @@ const QString RESOURCE_BASE("resources.download.minecraft.net/");
 const QString LIBRARY_BASE("libraries.minecraft.net/");
 const QString SKINS_BASE("skins.minecraft.net/MinecraftSkins/");
 const QString AUTH_BASE("authserver.mojang.com/");
+const QString FORGE_LEGACY_URL("http://files.minecraftforge.net/minecraftforge/json");
+const QString FORGE_GRADLE_URL("http://files.minecraftforge.net/maven/net/minecraftforge/forge/json");
 }
diff --git a/logic/tasks/SequentialTask.cpp b/logic/tasks/SequentialTask.cpp
new file mode 100644
index 00000000..63025eee
--- /dev/null
+++ b/logic/tasks/SequentialTask.cpp
@@ -0,0 +1,77 @@
+#include "SequentialTask.h"
+
+SequentialTask::SequentialTask(QObject *parent) :
+	Task(parent), m_currentIndex(-1)
+{
+
+}
+
+QString SequentialTask::getStatus() const
+{
+	if (m_queue.isEmpty() || m_currentIndex >= m_queue.size())
+	{
+		return QString();
+	}
+	return m_queue.at(m_currentIndex)->getStatus();
+}
+
+void SequentialTask::getProgress(qint64 &current, qint64 &total)
+{
+	current = 0;
+	total = 0;
+	for (int i = 0; i < m_queue.size(); ++i)
+	{
+		qint64 subCurrent, subTotal;
+		m_queue.at(i)->getProgress(subCurrent, subTotal);
+		current += subCurrent;
+		total += subTotal;
+	}
+}
+
+void SequentialTask::addTask(std::shared_ptr<Task> task)
+{
+	m_queue.append(task);
+}
+
+void SequentialTask::executeTask()
+{
+	m_currentIndex = -1;
+	startNext();
+}
+
+void SequentialTask::startNext()
+{
+	if (m_currentIndex != -1)
+	{
+		std::shared_ptr<Task> previous = m_queue[m_currentIndex];
+		disconnect(previous.get(), 0, this, 0);
+	}
+	m_currentIndex++;
+	if (m_queue.isEmpty() || m_currentIndex >= m_queue.size())
+	{
+		emitSucceeded();
+		return;
+	}
+	std::shared_ptr<Task> next = m_queue[m_currentIndex];
+	connect(next.get(), SIGNAL(failed(QString)), this, SLOT(subTaskFailed(QString)));
+	connect(next.get(), SIGNAL(status(QString)), this, SLOT(subTaskStatus(QString)));
+	connect(next.get(), SIGNAL(progress(qint64,qint64)), this, SLOT(subTaskProgress()));
+	connect(next.get(), SIGNAL(succeeded()), this, SLOT(startNext()));
+	next->start();
+	emit status(getStatus());
+}
+
+void SequentialTask::subTaskFailed(const QString &msg)
+{
+	emitFailed(msg);
+}
+void SequentialTask::subTaskStatus(const QString &msg)
+{
+	setStatus(msg);
+}
+void SequentialTask::subTaskProgress()
+{
+	qint64 current, total;
+	getProgress(current, total);
+	setProgress(100 * current / total);
+}
diff --git a/logic/tasks/SequentialTask.h b/logic/tasks/SequentialTask.h
new file mode 100644
index 00000000..7f046928
--- /dev/null
+++ b/logic/tasks/SequentialTask.h
@@ -0,0 +1,32 @@
+#pragma once
+
+#include "Task.h"
+
+#include <QQueue>
+#include <memory>
+
+class SequentialTask : public Task
+{
+	Q_OBJECT
+public:
+	explicit SequentialTask(QObject *parent = 0);
+
+	virtual QString getStatus() const;
+	virtual void getProgress(qint64 &current, qint64 &total);
+
+	void addTask(std::shared_ptr<Task> task);
+
+protected:
+	void executeTask();
+
+private
+slots:
+	void startNext();
+	void subTaskFailed(const QString &msg);
+	void subTaskStatus(const QString &msg);
+	void subTaskProgress();
+
+private:
+	QQueue<std::shared_ptr<Task> > m_queue;
+	int m_currentIndex;
+};
diff --git a/logic/tasks/ThreadTask.cpp b/logic/tasks/ThreadTask.cpp
new file mode 100644
index 00000000..ddd1dee5
--- /dev/null
+++ b/logic/tasks/ThreadTask.cpp
@@ -0,0 +1,41 @@
+#include "ThreadTask.h"
+#include <QtConcurrentRun>
+ThreadTask::ThreadTask(Task * internal, QObject *parent) : Task(parent), m_internal(internal)
+{
+}
+
+void ThreadTask::start()
+{
+	connect(m_internal, SIGNAL(failed(QString)), SLOT(iternal_failed(QString)));
+	connect(m_internal, SIGNAL(progress(qint64,qint64)), SLOT(iternal_progress(qint64,qint64)));
+	connect(m_internal, SIGNAL(started()), SLOT(iternal_started()));
+	connect(m_internal, SIGNAL(status(QString)), SLOT(iternal_status(QString)));
+	connect(m_internal, SIGNAL(succeeded()), SLOT(iternal_succeeded()));
+	m_running = true;
+	QtConcurrent::run(m_internal, &Task::start);
+}
+
+void ThreadTask::iternal_failed(QString reason)
+{
+	emitFailed(reason);
+}
+
+void ThreadTask::iternal_progress(qint64 current, qint64 total)
+{
+	progress(current, total);
+}
+
+void ThreadTask::iternal_started()
+{
+	emit started();
+}
+
+void ThreadTask::iternal_status(QString status)
+{
+	setStatus(status);
+}
+
+void ThreadTask::iternal_succeeded()
+{
+	emitSucceeded();
+}
diff --git a/logic/tasks/ThreadTask.h b/logic/tasks/ThreadTask.h
new file mode 100644
index 00000000..718dbc91
--- /dev/null
+++ b/logic/tasks/ThreadTask.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include "Task.h"
+
+class ThreadTask : public Task
+{
+	Q_OBJECT
+public:
+	explicit ThreadTask(Task * internal, QObject * parent = nullptr);
+
+protected:
+	void executeTask() {};
+
+public slots:
+	virtual void start();
+
+private slots:
+	void iternal_started();
+	void iternal_progress(qint64 current, qint64 total);
+	void iternal_succeeded();
+	void iternal_failed(QString reason);
+	void iternal_status(QString status);
+private:
+	Task * m_internal;
+};
\ No newline at end of file
diff --git a/logic/updater/DownloadUpdateTask.cpp b/logic/updater/DownloadUpdateTask.cpp
index d9aab826..6e0a92f0 100644
--- a/logic/updater/DownloadUpdateTask.cpp
+++ b/logic/updater/DownloadUpdateTask.cpp
@@ -26,9 +26,8 @@
 
 #include <QDomDocument>
 
-
-DownloadUpdateTask::DownloadUpdateTask(QString repoUrl, int versionId, QObject* parent) :
-	Task(parent)
+DownloadUpdateTask::DownloadUpdateTask(QString repoUrl, int versionId, QObject *parent)
+	: Task(parent)
 {
 	m_cVersionId = MMC->version().build;
 
@@ -45,68 +44,69 @@ void DownloadUpdateTask::executeTask()
 	findCurrentVersionInfo();
 }
 
-void DownloadUpdateTask::findCurrentVersionInfo()
+void DownloadUpdateTask::processChannels()
 {
-	setStatus(tr("Finding information about the current version."));
-
 	auto checker = MMC->updateChecker();
 
-	// This runs after we've tried loading the channel list.
-	// If the channel list doesn't need to be loaded, this will be called immediately.
-	// If the channel list does need to be loaded, this will be called when it's done.
-	auto processFunc = [this, &checker] () -> void
+	// Now, check the channel list again.
+	if (!checker->hasChannels())
 	{
-		// Now, check the channel list again.
-		if (checker->hasChannels())
-		{ 
-			// We still couldn't load the channel list. Give up. Call loadVersionInfo and return.
-			QLOG_INFO() << "Reloading the channel list didn't work. Giving up.";
-			loadVersionInfo();
-			return;
-		}
+		// We still couldn't load the channel list. Give up. Call loadVersionInfo and return.
+		QLOG_INFO() << "Reloading the channel list didn't work. Giving up.";
+		loadVersionInfo();
+		return;
+	}
 
-		QList<UpdateChecker::ChannelListEntry> channels = checker->getChannelList();
-		QString channelId = MMC->version().channel;
+	QList<UpdateChecker::ChannelListEntry> channels = checker->getChannelList();
+	QString channelId = MMC->version().channel;
 
-		// Search through the channel list for a channel with the correct ID.
-		for (auto channel : channels)
+	// Search through the channel list for a channel with the correct ID.
+	for (auto channel : channels)
+	{
+		if (channel.id == channelId)
 		{
-			if (channel.id == channelId)
-			{
-				QLOG_INFO() << "Found matching channel.";
-				m_cRepoUrl = channel.url;
-				break;
-			}
+			QLOG_INFO() << "Found matching channel.";
+			m_cRepoUrl = fixPathForTests(channel.url);
+			break;
 		}
+	}
 
-		// Now that we've done that, load version info.
-		loadVersionInfo();
-	};
+	// Now that we've done that, load version info.
+	loadVersionInfo();
+}
+
+void DownloadUpdateTask::findCurrentVersionInfo()
+{
+	setStatus(tr("Finding information about the current version..."));
+
+	auto checker = MMC->updateChecker();
 
-	if (checker->hasChannels())
+	if (!checker->hasChannels())
 	{
 		// Load the channel list and wait for it to finish loading.
 		QLOG_INFO() << "No channel list entries found. Will try reloading it.";
 
-		QObject::connect(checker.get(), &UpdateChecker::channelListLoaded, processFunc);
+		QObject::connect(checker.get(), &UpdateChecker::channelListLoaded, this,
+						 &DownloadUpdateTask::processChannels);
 		checker->updateChanList();
 	}
 	else
 	{
-		processFunc();
+		processChannels();
 	}
 }
 
 void DownloadUpdateTask::loadVersionInfo()
 {
-	setStatus(tr("Loading version information."));
+	setStatus(tr("Loading version information..."));
 
 	// Create the net job for loading version info.
-	NetJob* netJob = new NetJob("Version Info");
-	
+	NetJob *netJob = new NetJob("Version Info");
+
 	// Find the index URL.
 	QUrl newIndexUrl = QUrl(m_nRepoUrl).resolved(QString::number(m_nVersionId) + ".json");
-	
+	QLOG_DEBUG() << m_nRepoUrl << " turns into " << newIndexUrl;
+
 	// Add a net action to download the version info for the version we're updating to.
 	netJob->addNetAction(ByteArrayDownload::make(newIndexUrl));
 
@@ -115,10 +115,12 @@ void DownloadUpdateTask::loadVersionInfo()
 	{
 		QUrl cIndexUrl = QUrl(m_cRepoUrl).resolved(QString::number(m_cVersionId) + ".json");
 		netJob->addNetAction(ByteArrayDownload::make(cIndexUrl));
+		QLOG_DEBUG() << m_cRepoUrl << " turns into " << cIndexUrl;
 	}
 
 	// Connect slots so we know when it's done.
-	QObject::connect(netJob, &NetJob::succeeded, this, &DownloadUpdateTask::vinfoDownloadFinished);
+	QObject::connect(netJob, &NetJob::succeeded, this,
+					 &DownloadUpdateTask::vinfoDownloadFinished);
 	QObject::connect(netJob, &NetJob::failed, this, &DownloadUpdateTask::vinfoDownloadFailed);
 
 	// Store the NetJob in a class member. We don't want to lose it!
@@ -136,7 +138,8 @@ void DownloadUpdateTask::vinfoDownloadFinished()
 
 void DownloadUpdateTask::vinfoDownloadFailed()
 {
-	// Something failed. We really need the second download (current version info), so parse downloads anyways as long as the first one succeeded.
+	// Something failed. We really need the second download (current version info), so parse
+	// downloads anyways as long as the first one succeeded.
 	if (m_vinfoNetJob->first()->m_status != Job_Failed)
 	{
 		parseDownloadedVersionInfo();
@@ -150,61 +153,73 @@ void DownloadUpdateTask::vinfoDownloadFailed()
 
 void DownloadUpdateTask::parseDownloadedVersionInfo()
 {
-	setStatus(tr("Reading file lists."));
-
-	parseVersionInfo(NEW_VERSION, &m_nVersionFileList);
+	setStatus(tr("Reading file list for new version..."));
+	QLOG_DEBUG() << "Reading file list for new version...";
+	QString error;
+	if (!parseVersionInfo(
+			 std::dynamic_pointer_cast<ByteArrayDownload>(m_vinfoNetJob->first())->m_data,
+			 &m_nVersionFileList, &error))
+	{
+		emitFailed(error);
+		return;
+	}
 
-	// If there is a second entry in the network job's list, load it as the current version's info.
+	// If there is a second entry in the network job's list, load it as the current version's
+	// info.
 	if (m_vinfoNetJob->size() >= 2 && m_vinfoNetJob->operator[](1)->m_status != Job_Failed)
 	{
-		parseVersionInfo(CURRENT_VERSION, &m_cVersionFileList);
+		setStatus(tr("Reading file list for current version..."));
+		QLOG_DEBUG() << "Reading file list for current version...";
+		QString error;
+		parseVersionInfo(
+			std::dynamic_pointer_cast<ByteArrayDownload>(m_vinfoNetJob->operator[](1))->m_data,
+			&m_cVersionFileList, &error);
 	}
 
 	// We don't need this any more.
 	m_vinfoNetJob.reset();
 
-	// Now that we're done loading version info, we can move on to the next step. Process file lists and download files.
+	// Now that we're done loading version info, we can move on to the next step. Process file
+	// lists and download files.
 	processFileLists();
 }
 
-void DownloadUpdateTask::parseVersionInfo(VersionInfoFileEnum vfile, VersionFileList* list)
+bool DownloadUpdateTask::parseVersionInfo(const QByteArray &data, VersionFileList *list,
+										  QString *error)
 {
-	if (vfile == CURRENT_VERSION)  setStatus(tr("Reading file list for current version."));
-	else if (vfile == NEW_VERSION) setStatus(tr("Reading file list for new version."));
-
-	QLOG_DEBUG() << "Reading file list for" << (vfile == NEW_VERSION ? "new" : "current") << "version.";
-	
-	QByteArray data;
-	{
-		ByteArrayDownloadPtr dl = std::dynamic_pointer_cast<ByteArrayDownload>(
-				vfile == NEW_VERSION ? m_vinfoNetJob->first() : m_vinfoNetJob->operator[](1));
-		data = dl->m_data;
-	}
-
 	QJsonParseError jsonError;
 	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
 	if (jsonError.error != QJsonParseError::NoError)
 	{
-		QLOG_ERROR() << "Failed to parse version info JSON:" << jsonError.errorString() << "at" << jsonError.offset;
-		return;
+		*error = QString("Failed to parse version info JSON: %1 at %2")
+					 .arg(jsonError.errorString())
+					 .arg(jsonError.offset);
+		QLOG_ERROR() << error;
+		return false;
 	}
 
 	QJsonObject json = jsonDoc.object();
 
+	QLOG_DEBUG() << data;
 	QLOG_DEBUG() << "Loading version info from JSON.";
 	QJsonArray filesArray = json.value("Files").toArray();
 	for (QJsonValue fileValue : filesArray)
 	{
 		QJsonObject fileObj = fileValue.toObject();
 
-		VersionFileEntry file{
-			fileObj.value("Path").toString(),
-			fileObj.value("Perms").toVariant().toInt(),
-			FileSourceList(),
-			fileObj.value("MD5").toString(),
-		};
+		QString file_path = fileObj.value("Path").toString();
+#ifdef Q_OS_MAC
+		// On OSX, the paths for the updater need to be fixed.
+		// basically, anything that isn't in the .app folder is ignored.
+		// everything else is changed so the code that processes the files actually finds
+		// them and puts the replacements in the right spots.
+		if (!fixPathForOSX(file_path))
+			continue;
+#endif
+		VersionFileEntry file{file_path,		fileObj.value("Perms").toVariant().toInt(),
+							  FileSourceList(), fileObj.value("MD5").toString(), };
 		QLOG_DEBUG() << "File" << file.path << "with perms" << file.mode;
-		
+
 		QJsonArray sourceArray = fileObj.value("Sources").toArray();
 		for (QJsonValue val : sourceArray)
 		{
@@ -213,11 +228,14 @@ void DownloadUpdateTask::parseVersionInfo(VersionInfoFileEnum vfile, VersionFile
 			QString type = sourceObj.value("SourceType").toString();
 			if (type == "http")
 			{
-				file.sources.append(FileSource("http", sourceObj.value("Url").toString()));
+				file.sources.append(
+					FileSource("http", fixPathForTests(sourceObj.value("Url").toString())));
 			}
 			else if (type == "httpc")
 			{
-				file.sources.append(FileSource("httpc", sourceObj.value("Url").toString(), sourceObj.value("CompressionType").toString()));
+				file.sources.append(
+					FileSource("httpc", fixPathForTests(sourceObj.value("Url").toString()),
+							   sourceObj.value("CompressionType").toString()));
 			}
 			else
 			{
@@ -229,90 +247,185 @@ void DownloadUpdateTask::parseVersionInfo(VersionInfoFileEnum vfile, VersionFile
 
 		list->append(file);
 	}
+
+	return true;
 }
 
 void DownloadUpdateTask::processFileLists()
 {
-	setStatus(tr("Processing file lists. Figuring out how to install the update."));
+	// Create a network job for downloading files.
+	NetJob *netJob = new NetJob("Update Files");
+
+	if (!processFileLists(netJob, m_cVersionFileList, m_nVersionFileList, m_operationList))
+	{
+		emitFailed(tr("Failed to process update lists..."));
+		return;
+	}
+
+	// Add listeners to wait for the downloads to finish.
+	QObject::connect(netJob, &NetJob::succeeded, this,
+					 &DownloadUpdateTask::fileDownloadFinished);
+	QObject::connect(netJob, &NetJob::progress, this,
+					 &DownloadUpdateTask::fileDownloadProgressChanged);
+	QObject::connect(netJob, &NetJob::failed, this, &DownloadUpdateTask::fileDownloadFailed);
+
+	// Now start the download.
+	setStatus(tr("Downloading %1 update files.").arg(QString::number(netJob->size())));
+	QLOG_DEBUG() << "Begin downloading update files to" << m_updateFilesDir.path();
+	m_filesNetJob.reset(netJob);
+	netJob->start();
+
+	writeInstallScript(m_operationList, PathCombine(m_updateFilesDir.path(), "file_list.xml"));
+}
+
+bool
+DownloadUpdateTask::processFileLists(NetJob *job,
+									 const DownloadUpdateTask::VersionFileList &currentVersion,
+									 const DownloadUpdateTask::VersionFileList &newVersion,
+									 DownloadUpdateTask::UpdateOperationList &ops)
+{
+	setStatus(tr("Processing file lists - figuring out how to install the update..."));
 
-	// First, if we've loaded the current version's file list, we need to iterate through it and 
+	// First, if we've loaded the current version's file list, we need to iterate through it and
 	// delete anything in the current one version's list that isn't in the new version's list.
-	for (VersionFileEntry entry : m_cVersionFileList)
+	for (VersionFileEntry entry : currentVersion)
 	{
+		QFileInfo toDelete(entry.path);
+		if (!toDelete.exists())
+		{
+			QLOG_ERROR() << "Expected file " << toDelete.absoluteFilePath()
+						 << " doesn't exist!";
+			QLOG_ERROR() << "CWD: " << QDir::currentPath();
+		}
 		bool keep = false;
-		for (VersionFileEntry newEntry : m_nVersionFileList)
+
+		//
+		for (VersionFileEntry newEntry : newVersion)
 		{
 			if (newEntry.path == entry.path)
 			{
-				QLOG_DEBUG() << "Not deleting" << entry.path << "because it is still present in the new version.";
+				QLOG_DEBUG() << "Not deleting" << entry.path
+							 << "because it is still present in the new version.";
 				keep = true;
 				break;
 			}
 		}
+
 		// If the loop reaches the end and we didn't find a match, delete the file.
-		if(!keep)
-			m_operationList.append(UpdateOperation::DeleteOp(entry.path));
+		if (!keep)
+		{
+			QFileInfo toDelete(entry.path);
+			if (toDelete.exists())
+				ops.append(UpdateOperation::DeleteOp(entry.path));
+		}
 	}
 
-	// Create a network job for downloading files.
-	NetJob* netJob = new NetJob("Update Files");
-
 	// Next, check each file in MultiMC's folder and see if we need to update them.
-	for (VersionFileEntry entry : m_nVersionFileList)
+	for (VersionFileEntry entry : newVersion)
 	{
-		// TODO: Let's not MD5sum a ton of files on the GUI thread. We should probably find a way to do this in the background.
+		// TODO: Let's not MD5sum a ton of files on the GUI thread. We should probably find a
+		// way to do this in the background.
 		QString fileMD5;
 		QFile entryFile(entry.path);
-		if (entryFile.open(QFile::ReadOnly))
+		QFileInfo entryInfo(entry.path);
+
+		bool needs_upgrade = false;
+		if (!entryFile.exists())
 		{
-			QCryptographicHash hash(QCryptographicHash::Md5);
-			hash.addData(entryFile.readAll());
-			fileMD5 = hash.result().toHex();
+			needs_upgrade = true;
+		}
+		else
+		{
+			bool pass = true;
+			if (!entryInfo.isReadable())
+			{
+				QLOG_ERROR() << "File " << entry.path << " is not readable.";
+				pass = false;
+			}
+			if (!entryInfo.isWritable())
+			{
+				QLOG_ERROR() << "File " << entry.path << " is not writable.";
+				pass = false;
+			}
+			if (!entryFile.open(QFile::ReadOnly))
+			{
+				QLOG_ERROR() << "File " << entry.path << " cannot be opened for reading.";
+				pass = false;
+			}
+			if (!pass)
+			{
+				QLOG_ERROR() << "CWD: " << QDir::currentPath();
+				ops.clear();
+				return false;
+			}
 		}
 
-		if (!entryFile.exists() || fileMD5.isEmpty() || fileMD5 != entry.md5)
+		QCryptographicHash hash(QCryptographicHash::Md5);
+		auto foo = entryFile.readAll();
+
+		hash.addData(foo);
+		fileMD5 = hash.result().toHex();
+		if ((fileMD5 != entry.md5))
 		{
-			QLOG_DEBUG() << "Found file" << entry.path << "that needs updating.";
+			QLOG_DEBUG() << "MD5Sum does not match!";
+			QLOG_DEBUG() << "Expected:'" << entry.md5 << "'";
+			QLOG_DEBUG() << "Got:     '" << fileMD5 << "'";
+			needs_upgrade = true;
+		}
+
+		// skip file. it doesn't need an upgrade.
+		if (!needs_upgrade)
+		{
+			QLOG_DEBUG() << "File" << entry.path << " does not need updating.";
+			continue;
+		}
 
-			// Go through the sources list and find one to use.
-			// TODO: Make a NetAction that takes a source list and tries each of them until one works. For now, we'll just use the first http one.
-			for (FileSource source : entry.sources)
+		// yep. this file actually needs an upgrade. PROCEED.
+		QLOG_DEBUG() << "Found file" << entry.path << " that needs updating.";
+
+		// if it's the updater we want to treat it separately
+		bool isUpdater = entry.path.endsWith("updater") || entry.path.endsWith("updater.exe");
+
+		// Go through the sources list and find one to use.
+		// TODO: Make a NetAction that takes a source list and tries each of them until one
+		// works. For now, we'll just use the first http one.
+		for (FileSource source : entry.sources)
+		{
+			if (source.type == "http")
 			{
-				if (source.type == "http")
-				{
-					QLOG_DEBUG() << "Will download" << entry.path << "from" << source.url;
+				QLOG_DEBUG() << "Will download" << entry.path << "from" << source.url;
 
-					// Download it to updatedir/<filepath>-<md5> where filepath is the file's path with slashes replaced by underscores.
-					QString dlPath = PathCombine(m_updateFilesDir.path(), QString(entry.path).replace("/", "_"));
+				// Download it to updatedir/<filepath>-<md5> where filepath is the file's
+				// path with slashes replaced by underscores.
+				QString dlPath =
+					PathCombine(m_updateFilesDir.path(), QString(entry.path).replace("/", "_"));
 
-					// We need to download the file to the updatefiles folder and add a task to copy it to its install path.
+				if (isUpdater)
+				{
+					auto cache_entry = MMC->metacache()->resolveEntry("root", entry.path);
+					QLOG_DEBUG() << "Updater will be in " << cache_entry->getFullPath();
+					if(cache_entry->stale)
+					{
+						auto download = CacheDownload::make(QUrl(source.url), cache_entry);
+						job->addNetAction(download);
+					}
+				}
+				else
+				{
+					// We need to download the file to the updatefiles folder and add a task
+					// to copy it to its install path.
 					auto download = MD5EtagDownload::make(source.url, dlPath);
-					download->m_check_md5 = true;
 					download->m_expected_md5 = entry.md5;
-					netJob->addNetAction(download);
-
-					// Now add a copy operation to our operations list to install the file.
-					m_operationList.append(UpdateOperation::CopyOp(dlPath, entry.path, entry.mode));
+					job->addNetAction(download);
+					ops.append(UpdateOperation::CopyOp(dlPath, entry.path, entry.mode));
 				}
 			}
 		}
 	}
-
-	// Add listeners to wait for the downloads to finish.
-	QObject::connect(netJob, &NetJob::succeeded, this, &DownloadUpdateTask::fileDownloadFinished);
-	QObject::connect(netJob, &NetJob::progress, this, &DownloadUpdateTask::fileDownloadProgressChanged);
-	QObject::connect(netJob, &NetJob::failed, this, &DownloadUpdateTask::fileDownloadFailed);
-
-	// Now start the download.
-	setStatus(tr("Downloading %1 update files.").arg(QString::number(netJob->size())));
-	QLOG_DEBUG() << "Begin downloading update files to" << m_updateFilesDir.path();
-	m_filesNetJob.reset(netJob);
-	netJob->start();
-
-	writeInstallScript(m_operationList, PathCombine(m_updateFilesDir.path(), "file_list.xml"));
+	return true;
 }
 
-void DownloadUpdateTask::writeInstallScript(UpdateOperationList& opsList, QString scriptFile)
+bool DownloadUpdateTask::writeInstallScript(UpdateOperationList &opsList, QString scriptFile)
 {
 	// Build the base structure of the XML document.
 	QDomDocument doc;
@@ -334,36 +447,38 @@ void DownloadUpdateTask::writeInstallScript(UpdateOperationList& opsList, QStrin
 
 		switch (op.type)
 		{
-			case UpdateOperation::OP_COPY:
-				{
-				// Install the file.
-				QDomElement name = doc.createElement("source");
-				QDomElement path = doc.createElement("dest");
-				QDomElement mode = doc.createElement("mode");
-				name.appendChild(doc.createTextNode(op.file));
-				path.appendChild(doc.createTextNode(op.dest));
-				// We need to add a 0 at the beginning here, because Qt doesn't convert to octal correctly.
-				mode.appendChild(doc.createTextNode("0" + QString::number(op.mode, 8)));
-				file.appendChild(name);
-				file.appendChild(path);
-				file.appendChild(mode);
-				installFiles.appendChild(file);
-				QLOG_DEBUG() << "Will install file" << op.file;
-				}
-				break;
+		case UpdateOperation::OP_COPY:
+		{
+			// Install the file.
+			QDomElement name = doc.createElement("source");
+			QDomElement path = doc.createElement("dest");
+			QDomElement mode = doc.createElement("mode");
+			name.appendChild(doc.createTextNode(op.file));
+			path.appendChild(doc.createTextNode(op.dest));
+			// We need to add a 0 at the beginning here, because Qt doesn't convert to octal
+			// correctly.
+			mode.appendChild(doc.createTextNode("0" + QString::number(op.mode, 8)));
+			file.appendChild(name);
+			file.appendChild(path);
+			file.appendChild(mode);
+			installFiles.appendChild(file);
+			QLOG_DEBUG() << "Will install file " << op.file << " to " << op.dest;
+		}
+		break;
 
-			case UpdateOperation::OP_DELETE:
-				{
-				// Delete the file.
-				file.appendChild(doc.createTextNode(op.file));
-				removeFiles.appendChild(file);
-				QLOG_DEBUG() << "Will remove file" << op.file;
-				}
-				break;
+		case UpdateOperation::OP_DELETE:
+		{
+			// Delete the file.
+			file.appendChild(doc.createTextNode(op.file));
+			removeFiles.appendChild(file);
+			QLOG_DEBUG() << "Will remove file" << op.file;
+		}
+		break;
 
-			default:
-				QLOG_WARN() << "Can't write update operation of type" << op.type << "to file. Not implemented.";
-				continue;
+		default:
+			QLOG_WARN() << "Can't write update operation of type" << op.type
+						<< "to file. Not implemented.";
+			continue;
 		}
 	}
 
@@ -377,6 +492,36 @@ void DownloadUpdateTask::writeInstallScript(UpdateOperationList& opsList, QStrin
 	else
 	{
 		emitFailed(tr("Failed to write update script file."));
+		return false;
+	}
+
+	return true;
+}
+
+QString DownloadUpdateTask::fixPathForTests(const QString &path)
+{
+	if (path.startsWith("$PWD"))
+	{
+		QString foo = path;
+		foo.replace("$PWD", qApp->applicationDirPath());
+		return QUrl::fromLocalFile(foo).toString(QUrl::FullyEncoded);
+	}
+	return path;
+}
+
+bool DownloadUpdateTask::fixPathForOSX(QString &path)
+{
+	if (path.startsWith("MultiMC.app/"))
+	{
+		// remove the prefix and add a new, more appropriate one.
+		path.remove(0, 12);
+		path = QString("../../") + path;
+		return true;
+	}
+	else
+	{
+		QLOG_ERROR() << "Update path not within .app: " << path;
+		return false;
 	}
 }
 
@@ -394,11 +539,10 @@ void DownloadUpdateTask::fileDownloadFailed()
 
 void DownloadUpdateTask::fileDownloadProgressChanged(qint64 current, qint64 total)
 {
-	setProgress((int)(((float)current / (float)total)*100));
+	setProgress((int)(((float)current / (float)total) * 100));
 }
 
 QString DownloadUpdateTask::updateFilesDir()
 {
 	return m_updateFilesDir.path();
 }
-
diff --git a/logic/updater/DownloadUpdateTask.h b/logic/updater/DownloadUpdateTask.h
index f5b23d12..b1d14846 100644
--- a/logic/updater/DownloadUpdateTask.h
+++ b/logic/updater/DownloadUpdateTask.h
@@ -34,7 +34,8 @@ public:
 	 */
 	QString updateFilesDir();
 	
-protected:
+public:
+
 	// TODO: We should probably put these data structures into a separate header...
 
 	/*!
@@ -53,7 +54,6 @@ protected:
 		QString url;
 		QString compressionType;
 	};
-
 	typedef QList<FileSource> FileSourceList;
 
 	/*!
@@ -66,10 +66,8 @@ protected:
 		FileSourceList sources;
 		QString md5;
 	};
-
 	typedef QList<VersionFileEntry> VersionFileList;
 
-
 	/*!
 	 * Structure that describes an operation to perform when installing updates.
 	 */
@@ -100,9 +98,12 @@ protected:
 
 		// Yeah yeah, polymorphism blah blah inheritance, blah blah object oriented. I'm lazy, OK?
 	};
-
 	typedef QList<UpdateOperation> UpdateOperationList;
 
+protected:
+	friend class DownloadUpdateTaskTest;
+
+
 	/*!
 	 * Used for arguments to parseVersionInfo and friends to specify which version info file to parse.
 	 */
@@ -120,6 +121,13 @@ protected:
 	virtual void findCurrentVersionInfo();
 
 	/*!
+	 * This runs after we've tried loading the channel list.
+	 * If the channel list doesn't need to be loaded, this will be called immediately.
+	 * If the channel list does need to be loaded, this will be called when it's done.
+	 */
+	void processChannels();
+
+	/*!
 	 * Downloads the version info files from the repository.
 	 * The files for both the current build, and the build that we're updating to need to be downloaded.
 	 * If the current version's info file can't be found, MultiMC will not delete files that 
@@ -142,20 +150,25 @@ protected:
 	/*!
 	 * Loads the file list from the given version info JSON object into the given list.
 	 */
-	virtual void parseVersionInfo(VersionInfoFileEnum vfile, VersionFileList* list);
+	virtual bool parseVersionInfo(const QByteArray &data, VersionFileList* list, QString *error);
 
 	/*!
 	 * Takes a list of file entries for the current version's files and the new version's files
 	 * and populates the downloadList and operationList with information about how to download and install the update.
 	 */
+	virtual bool processFileLists(NetJob *job, const VersionFileList &currentVersion, const VersionFileList &newVersion, UpdateOperationList &ops);
+
+	/*!
+	 * Calls \see processFileLists to populate the \see m_operationList and a NetJob, and then executes
+	 * the NetJob to fetch all needed files
+	 */
 	virtual void processFileLists();
 
 	/*!
 	 * Takes the operations list and writes an install script for the updater to the update files directory.
 	 */
-	virtual void writeInstallScript(UpdateOperationList& opsList, QString scriptFile);
+	virtual bool writeInstallScript(UpdateOperationList& opsList, QString scriptFile);
 
-	VersionFileList m_downloadList;
 	UpdateOperationList m_operationList;
 
 	VersionFileList m_nVersionFileList;
@@ -181,6 +194,26 @@ protected:
 	 */
 	QTemporaryDir m_updateFilesDir;
 
+	/*!
+	 * Filters paths
+	 * Path of the format $PWD/path, it is converted to a file:///$PWD/ URL
+	 */
+	static QString fixPathForTests(const QString &path);
+
+	/*!
+	 * Filters paths
+	 * This fixes destination paths for OSX.
+	 * The updater runs in MultiMC.app/Contents/MacOs by default
+	 * The destination paths are such as this: MultiMC.app/blah/blah
+	 * 
+	 * Therefore we chop off the 'MultiMC.app' prefix and prepend ../..
+	 * 
+	 * Returns false if the path couldn't be fixed (is invalid)
+	 * 
+	 * Has no effect on systems that aren't OSX
+	 */
+	static bool fixPathForOSX(QString &path);
+
 protected slots:
 	void vinfoDownloadFinished();
 	void vinfoDownloadFailed();
diff --git a/logic/updater/UpdateChecker.cpp b/logic/updater/UpdateChecker.cpp
index 5ff1898e..d0795c0d 100644
--- a/logic/updater/UpdateChecker.cpp
+++ b/logic/updater/UpdateChecker.cpp
@@ -44,17 +44,19 @@ QList<UpdateChecker::ChannelListEntry> UpdateChecker::getChannelList() const
 
 bool UpdateChecker::hasChannels() const
 {
-	return m_channels.isEmpty();
+	return !m_channels.isEmpty();
 }
 
-void UpdateChecker::checkForUpdate()
+void UpdateChecker::checkForUpdate(bool notifyNoUpdate)
 {
 	QLOG_DEBUG() << "Checking for updates.";
 
-	// If the channel list hasn't loaded yet, load it and defer checking for updates until later.
+	// If the channel list hasn't loaded yet, load it and defer checking for updates until
+	// later.
 	if (!m_chanListLoaded)
 	{
-		QLOG_DEBUG() << "Channel list isn't loaded yet. Loading channel list and deferring update check.";
+		QLOG_DEBUG() << "Channel list isn't loaded yet. Loading channel list and deferring "
+						"update check.";
 		m_checkUpdateWaiting = true;
 		updateChanList();
 		return;
@@ -72,7 +74,8 @@ void UpdateChecker::checkForUpdate()
 	// TODO: Allow user to select channels. For now, we'll just use the current channel.
 	QString updateChannel = m_currentChannel;
 
-	// Find the desired channel within the channel list and get its repo URL. If if cannot be found, error.
+	// Find the desired channel within the channel list and get its repo URL. If if cannot be
+	// found, error.
 	m_repoUrl = "";
 	for (ChannelListEntry entry : m_channels)
 	{
@@ -91,20 +94,22 @@ void UpdateChecker::checkForUpdate()
 
 	auto job = new NetJob("GoUpdate Repository Index");
 	job->addNetAction(ByteArrayDownload::make(indexUrl));
-	connect(job, SIGNAL(succeeded()), SLOT(updateCheckFinished()));
+	connect(job, &NetJob::succeeded, [this, notifyNoUpdate]()
+	{ updateCheckFinished(notifyNoUpdate); });
 	connect(job, SIGNAL(failed()), SLOT(updateCheckFailed()));
 	indexJob.reset(job);
 	job->start();
 }
 
-void UpdateChecker::updateCheckFinished()
+void UpdateChecker::updateCheckFinished(bool notifyNoUpdate)
 {
 	QLOG_DEBUG() << "Finished downloading repo index. Checking for new versions.";
 
 	QJsonParseError jsonError;
 	QByteArray data;
 	{
-		ByteArrayDownloadPtr dl = std::dynamic_pointer_cast<ByteArrayDownload>(indexJob->first());
+		ByteArrayDownloadPtr dl =
+			std::dynamic_pointer_cast<ByteArrayDownload>(indexJob->first());
 		data = dl->m_data;
 		indexJob.reset();
 	}
@@ -112,7 +117,8 @@ void UpdateChecker::updateCheckFinished()
 	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
 	if (jsonError.error != QJsonParseError::NoError || !jsonDoc.isObject())
 	{
-		QLOG_ERROR() << "Failed to parse GoUpdate repository index. JSON error" << jsonError.errorString() << "at offset" << jsonError.offset;
+		QLOG_ERROR() << "Failed to parse GoUpdate repository index. JSON error"
+					 << jsonError.errorString() << "at offset" << jsonError.offset;
 		return;
 	}
 
@@ -122,7 +128,8 @@ void UpdateChecker::updateCheckFinished()
 	int apiVersion = object.value("ApiVersion").toVariant().toInt(&success);
 	if (apiVersion != API_VERSION || !success)
 	{
-		QLOG_ERROR() << "Failed to check for updates. API version mismatch. We're using" << API_VERSION << "server has" << apiVersion;
+		QLOG_ERROR() << "Failed to check for updates. API version mismatch. We're using"
+					 << API_VERSION << "server has" << apiVersion;
 		return;
 	}
 
@@ -132,19 +139,27 @@ void UpdateChecker::updateCheckFinished()
 	for (QJsonValue versionVal : versions)
 	{
 		QJsonObject version = versionVal.toObject();
-		if (newestVersion.value("Id").toVariant().toInt() < version.value("Id").toVariant().toInt())
+		if (newestVersion.value("Id").toVariant().toInt() <
+			version.value("Id").toVariant().toInt())
 		{
-			QLOG_DEBUG() << "Found newer version with ID" << version.value("Id").toVariant().toInt();
+			QLOG_DEBUG() << "Found newer version with ID"
+						 << version.value("Id").toVariant().toInt();
 			newestVersion = version;
 		}
 	}
 
-	// We've got the version with the greatest ID number. Now compare it to our current build number and update if they're different.
+	// We've got the version with the greatest ID number. Now compare it to our current build
+	// number and update if they're different.
 	int newBuildNumber = newestVersion.value("Id").toVariant().toInt();
 	if (newBuildNumber != MMC->version().build)
 	{
 		// Update!
-		emit updateAvailable(m_repoUrl, newestVersion.value("Name").toVariant().toString(), newBuildNumber);
+		emit updateAvailable(m_repoUrl, newestVersion.value("Name").toVariant().toString(),
+							 newBuildNumber);
+	}
+	else if (notifyNoUpdate)
+	{
+		emit noUpdateFound();
 	}
 
 	m_updateChecking = false;
@@ -163,12 +178,13 @@ void UpdateChecker::updateChanList()
 	if (m_channelListUrl.isEmpty())
 	{
 		QLOG_ERROR() << "Failed to update channel list. No channel list URL set."
-					 << "If you'd like to use MultiMC's update system, please pass the channel list URL to CMake at compile time.";
+					 << "If you'd like to use MultiMC's update system, please pass the channel "
+						"list URL to CMake at compile time.";
 		return;
 	}
 
 	m_chanListLoading = true;
-	NetJob* job = new NetJob("Update System Channel List");
+	NetJob *job = new NetJob("Update System Channel List");
 	job->addNetAction(ByteArrayDownload::make(QUrl(m_channelListUrl)));
 	QObject::connect(job, &NetJob::succeeded, this, &UpdateChecker::chanListDownloadFinished);
 	QObject::connect(job, &NetJob::failed, this, &UpdateChecker::chanListDownloadFailed);
@@ -180,7 +196,8 @@ void UpdateChecker::chanListDownloadFinished()
 {
 	QByteArray data;
 	{
-		ByteArrayDownloadPtr dl = std::dynamic_pointer_cast<ByteArrayDownload>(chanListJob->first());
+		ByteArrayDownloadPtr dl =
+			std::dynamic_pointer_cast<ByteArrayDownload>(chanListJob->first());
 		data = dl->m_data;
 		chanListJob.reset();
 	}
@@ -190,17 +207,20 @@ void UpdateChecker::chanListDownloadFinished()
 	if (jsonError.error != QJsonParseError::NoError)
 	{
 		// TODO: Report errors to the user.
-		QLOG_ERROR() << "Failed to parse channel list JSON:" << jsonError.errorString() << "at" << jsonError.offset;
+		QLOG_ERROR() << "Failed to parse channel list JSON:" << jsonError.errorString() << "at"
+					 << jsonError.offset;
 		return;
 	}
-	
+
 	QJsonObject object = jsonDoc.object();
 
 	bool success = false;
 	int formatVersion = object.value("format_version").toVariant().toInt(&success);
 	if (formatVersion != CHANLIST_FORMAT || !success)
 	{
-		QLOG_ERROR() << "Failed to check for updates. Channel list format version mismatch. We're using" << CHANLIST_FORMAT << "server has" << formatVersion;
+		QLOG_ERROR()
+			<< "Failed to check for updates. Channel list format version mismatch. We're using"
+			<< CHANLIST_FORMAT << "server has" << formatVersion;
 		return;
 	}
 
@@ -210,12 +230,10 @@ void UpdateChecker::chanListDownloadFinished()
 	for (QJsonValue chanVal : channelArray)
 	{
 		QJsonObject channelObj = chanVal.toObject();
-		ChannelListEntry entry{
-				channelObj.value("id").toVariant().toString(),
-				channelObj.value("name").toVariant().toString(),
-				channelObj.value("description").toVariant().toString(),
-				channelObj.value("url").toVariant().toString()
-			};
+		ChannelListEntry entry{channelObj.value("id").toVariant().toString(),
+							   channelObj.value("name").toVariant().toString(),
+							   channelObj.value("description").toVariant().toString(),
+							   channelObj.value("url").toVariant().toString()};
 		if (entry.id.isEmpty() || entry.name.isEmpty() || entry.url.isEmpty())
 		{
 			QLOG_ERROR() << "Channel list entry with empty ID, name, or URL. Skipping.";
@@ -233,7 +251,7 @@ void UpdateChecker::chanListDownloadFinished()
 
 	// If we're waiting to check for updates, do that now.
 	if (m_checkUpdateWaiting)
-		checkForUpdate();
+		checkForUpdate(false);
 
 	emit channelListLoaded();
 }
@@ -244,4 +262,3 @@ void UpdateChecker::chanListDownloadFailed()
 	QLOG_ERROR() << "Failed to download channel list.";
 	emit channelListLoaded();
 }
-
diff --git a/logic/updater/UpdateChecker.h b/logic/updater/UpdateChecker.h
index 59fb8e47..a47e8903 100644
--- a/logic/updater/UpdateChecker.h
+++ b/logic/updater/UpdateChecker.h
@@ -25,7 +25,10 @@ class UpdateChecker : public QObject
 
 public:
 	UpdateChecker();
-	void checkForUpdate();
+	void checkForUpdate(bool notifyNoUpdate);
+
+	void setCurrentChannel(const QString &channel) { m_currentChannel = channel; }
+	void setChannelListUrl(const QString &url) { m_channelListUrl = url; }
 
 	/*!
 	 * Causes the update checker to download the channel list from the URL specified in config.h (generated by CMake).
@@ -62,14 +65,18 @@ signals:
 	//! Signal emitted when the channel list finishes loading or fails to load.
 	void channelListLoaded();
 
+	void noUpdateFound();
+
 private slots:
-	void updateCheckFinished();
+	void updateCheckFinished(bool notifyNoUpdate);
 	void updateCheckFailed();
 
 	void chanListDownloadFinished();
 	void chanListDownloadFailed();
 
 private:
+	friend class UpdateCheckerTest;
+
 	NetJobPtr indexJob;
 	NetJobPtr chanListJob;
 
diff --git a/main.cpp b/main.cpp
index fb75765a..89eef72f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,6 +8,7 @@ int main_gui(MultiMC &app)
 	mainWin.restoreState(QByteArray::fromBase64(MMC->settings()->get("MainWindowState").toByteArray()));
 	mainWin.restoreGeometry(QByteArray::fromBase64(MMC->settings()->get("MainWindowGeometry").toByteArray()));
 	mainWin.show();
+	mainWin.checkMigrateLegacyAssets();
 	mainWin.checkSetDefaultJava();
 	auto exitCode = app.exec();
 
diff --git a/mmc_updater/CMakeLists.txt b/mmc_updater/CMakeLists.txt
index 61c8cd09..971ac153 100644
--- a/mmc_updater/CMakeLists.txt
+++ b/mmc_updater/CMakeLists.txt
@@ -9,6 +9,14 @@ include_directories(depends)
 if (WIN32)
     include_directories(depends/win32cpp)
 
+	# static all the things. The updater must have no dependencies,  or it will fail.
+	if (MINGW)
+		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static-libgcc -static")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libgcc -static-libstdc++ -static")
+#set(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS} -static-libgcc -s")
+#set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS} -static-libgcc -static-libstdc++ -s")
+	endif()
+
     if(MSVC)
 		# - Link the updater binary statically with the Visual C++ runtime
 		#   so that the executable can function standalone.
diff --git a/mmc_updater/src/FileUtils.cpp b/mmc_updater/src/FileUtils.cpp
index 10435e49..712c0c5d 100644
--- a/mmc_updater/src/FileUtils.cpp
+++ b/mmc_updater/src/FileUtils.cpp
@@ -10,6 +10,8 @@
 #include <string.h>
 #include <fstream>
 #include <iostream>
+// this actually works with mingw32, which we use.
+#include <libgen.h>
 
 #ifdef PLATFORM_UNIX
 #include <unistd.h>
@@ -19,7 +21,6 @@
 #include <sys/time.h>
 #include <sys/stat.h>
 #include <errno.h>
-#include <libgen.h>
 #endif
 
 FileUtils::IOException::IOException(const std::string& error)
@@ -249,59 +250,18 @@ void FileUtils::removeFile(const char* src) throw (IOException)
 
 std::string FileUtils::fileName(const char* path)
 {
-#ifdef PLATFORM_UNIX
 	char* pathCopy = strdup(path);
 	std::string basename = ::basename(pathCopy);
 	free(pathCopy);
 	return basename;
-#else
-	char baseName[MAX_PATH];
-	char extension[MAX_PATH];
-	_splitpath_s(path,
-	  0, /* drive */
-	  0, /* drive length */
-	  0, /* dir */
-	  0, /* dir length */
-	  baseName,
-	  MAX_PATH, /* baseName length */
-	  extension,
-	  MAX_PATH /* extension length */
-	  );
-	return std::string(baseName) + std::string(extension);
-#endif
 }
 
 std::string FileUtils::dirname(const char* path)
 {
-#ifdef PLATFORM_UNIX
 	char* pathCopy = strdup(path);
 	std::string dirname = ::dirname(pathCopy);
 	free(pathCopy);
 	return dirname;
-#else
-	char drive[3];
-	char dir[MAX_PATH];
-
-	_splitpath_s(path,
-	  drive, /* drive */ 
-	  3, /* drive length */
-	  dir,
-	  MAX_PATH, /* dir length */
-	  0, /* filename */
-	  0, /* filename length */
-	  0, /* extension */
-	  0  /* extension length */
-	);
-
-	std::string result;
-	if (drive[0])
-	{
-		result += std::string(drive);
-	}
-	result += dir;
-
-	return result;
-#endif
 }
 
 void FileUtils::touch(const char* path) throw (IOException)
diff --git a/mmc_updater/src/Platform.h b/mmc_updater/src/Platform.h
index 6d9afdfb..97867d6a 100644
--- a/mmc_updater/src/Platform.h
+++ b/mmc_updater/src/Platform.h
@@ -13,7 +13,9 @@
 
  // disable warnings about exception specifications,
  // which are not implemented in Visual C++
- #pragma warning(disable:4290)
+    #ifdef MSVC
+        #pragma warning(disable:4290)
+    #endif
 #endif
 
 #ifdef __APPLE__
diff --git a/mmc_updater/src/UpdateDialogWin32.cpp b/mmc_updater/src/UpdateDialogWin32.cpp
index bdc25437..8b38bed2 100644
--- a/mmc_updater/src/UpdateDialogWin32.cpp
+++ b/mmc_updater/src/UpdateDialogWin32.cpp
@@ -85,8 +85,8 @@ UpdateDialogWin32::~UpdateDialogWin32()
 
 void UpdateDialogWin32::init(int /* argc */, char** /* argv */)
 {
-	int width = 300;
-	int height = 130;
+	int width = 400;
+	int height = 150;
 
 	DWORD style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
 	m_window.CreateEx(0 /* dwExStyle */,
diff --git a/mmc_updater/src/UpdateScript.h b/mmc_updater/src/UpdateScript.h
index c825e35d..5c863ff4 100644
--- a/mmc_updater/src/UpdateScript.h
+++ b/mmc_updater/src/UpdateScript.h
@@ -56,9 +56,7 @@ class UpdateScriptFile
 		}
 };
 
-/** Stores information about the packages and files included
-  * in an update, parsed from an XML file.
-  */
+/** Stores information about the files included in an update, parsed from an XML file. */
 class UpdateScript
 {
 	public:
diff --git a/mmc_updater/src/UpdaterOptions.cpp b/mmc_updater/src/UpdaterOptions.cpp
index ae34562d..0945431b 100644
--- a/mmc_updater/src/UpdaterOptions.cpp
+++ b/mmc_updater/src/UpdaterOptions.cpp
@@ -142,7 +142,7 @@ void UpdaterOptions::parse(int argc, char** argv)
 	showVersion = parser.getFlag("version");
 	forceElevated = parser.getFlag("force-elevated");
 	autoClose = parser.getFlag("auto-close");
-		
+
 	if (installDir.empty())
 	{
 		// if no --install-dir argument is present, try parsing
@@ -152,3 +152,4 @@ void UpdaterOptions::parse(int argc, char** argv)
 	}
 }
 
+
diff --git a/mmc_updater/src/resources/updater.manifest b/mmc_updater/src/resources/updater.manifest
new file mode 100644
index 00000000..cafc47d3
--- /dev/null
+++ b/mmc_updater/src/resources/updater.manifest
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <assemblyIdentity name="MultiMC.Updater.1" type="win32" version="1.0.0.0" />
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*"/>
+    </dependentAssembly>
+  </dependency>
+  <description>Software updater for MultiMC.</description>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!--The ID below indicates app support for Windows Vista -->
+      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+      <!--The ID below indicates app support for Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+      <!--The ID below indicates app support for Windows Developer Preview / Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+    </application> 
+  </compatibility>
+</assembly>
\ No newline at end of file
diff --git a/mmc_updater/src/resources/updater.rc b/mmc_updater/src/resources/updater.rc
index 550970a8..9c7c5711 100644
--- a/mmc_updater/src/resources/updater.rc
+++ b/mmc_updater/src/resources/updater.rc
@@ -1,30 +1,30 @@
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+
 IDI_APPICON		ICON		DISCARDABLE	"updater.ico"
 
-1       VERSIONINFO
-FILEVERSION     0,0,1,0
-PRODUCTVERSION  1,0,1,0
-FILEFLAGSMASK   0X3FL
-FILEFLAGS       0X8L
-FILEOS          0X40004L
-FILETYPE        0X1
-FILESUBTYPE     0
+1 RT_MANIFEST "updater.manifest"
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION     1,0,0,0
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
 BEGIN
         BLOCK "StringFileInfo"
         BEGIN
                 BLOCK "000004b0"
                 BEGIN
-                        VALUE "FileVersion", "0.0.1.0"
-                        VALUE "ProductVersion", "1.0.1.0"
-                        VALUE "OriginalFilename", "updater.exe"
-                        VALUE "InternalName", "updater.exe"
-                        VALUE "FileDescription", "Software Update Tool"
                         VALUE "CompanyName", "MultiMC Contributors"
+                        VALUE "FileDescription", "Software Update Tool"
+                        VALUE "FileVersion", "1.0.0.0"
                         VALUE "ProductName", "MultiMC Software Updater"
-                        VALUE "PrivateBuild", "Built by BuildBot"
+                        VALUE "ProductVersion", "1.0"
                 END
         END
         BLOCK "VarFileInfo"
         BEGIN
-                VALUE "Translation", 0x0000, 0x04b0
+                VALUE "Translation", 0x0000, 0x04b0 // Unicode
         END
 END
\ No newline at end of file
diff --git a/mmc_updater/src/tests/CMakeLists.txt b/mmc_updater/src/tests/CMakeLists.txt
index 5de9d096..79402245 100644
--- a/mmc_updater/src/tests/CMakeLists.txt
+++ b/mmc_updater/src/tests/CMakeLists.txt
@@ -5,21 +5,19 @@ if (APPLE)
   set(HELPER_SHARED_SOURCES ../StlSymbolsLeopard.cpp)
 endif()
 
-# Create helper binaries for unit tests
-add_executable(oldapp
-  old_app.cpp
-  ${HELPER_SHARED_SOURCES}
-)
-add_executable(newapp
-  new_app.cpp
-  ${HELPER_SHARED_SOURCES}
-)
+# # Create helper binaries for unit tests
+# add_executable(oldapp
+#   old_app.cpp
+#   ${HELPER_SHARED_SOURCES}
+# )
+# add_executable(newapp
+#   new_app.cpp
+#   ${HELPER_SHARED_SOURCES}
+# )
 
 # Install data files required by unit tests
 set(TEST_FILES
   file_list.xml
-  v2_file_list.xml
-  test-update.rb
 )
 
 foreach(TEST_FILE ${TEST_FILES})
@@ -31,21 +29,20 @@ endforeach()
 
 # Add unit test binaries
 macro(ADD_UPDATER_TEST CLASS)
-  set(TEST_TARGET updater_${CLASS})
-  add_executable(${TEST_TARGET} ${CLASS}.cpp)
-  target_link_libraries(${TEST_TARGET} updatershared)
-  add_test(NAME ${TEST_TARGET} COMMAND ${TEST_TARGET})
-  if (APPLE)
-	  set_target_properties(${TEST_TARGET} PROPERTIES LINK_FLAGS "-framework Security -framework Cocoa")
-  endif()
+	set(TEST_TARGET updater_${CLASS})
+	unset(srcs)
+	list(APPEND srcs ${CLASS}.cpp)
+	if (WIN32)
+		list(APPEND srcs ${CMAKE_CURRENT_SOURCE_DIR}/test.rc)
+	endif()
+	add_executable(${TEST_TARGET} ${srcs})
+	target_link_libraries(${TEST_TARGET} updatershared)
+	add_test(NAME ${TEST_TARGET} COMMAND ${TEST_TARGET})
+	if (APPLE)
+		set_target_properties(${TEST_TARGET} PROPERTIES LINK_FLAGS "-framework Security -framework Cocoa")
+	endif()
 endmacro()
 
-add_updater_test(TestUpdateScript)
+add_updater_test(TestParseScript)
 add_updater_test(TestUpdaterOptions)
 add_updater_test(TestFileUtils)
-
-# Add updater that that performs a complete update install
-# and checks the result
-find_program(RUBY_BIN ruby)
-add_test(updater_TestUpdateInstall ${RUBY_BIN} test-update.rb)
-  
diff --git a/mmc_updater/src/tests/TestFileUtils.cpp b/mmc_updater/src/tests/TestFileUtils.cpp
index 709acc5c..f8535a28 100644
--- a/mmc_updater/src/tests/TestFileUtils.cpp
+++ b/mmc_updater/src/tests/TestFileUtils.cpp
@@ -5,10 +5,39 @@
 
 void TestFileUtils::testDirName()
 {
+	std::string dirName;
+	std::string fileName;
+	
 #ifdef PLATFORM_WINDOWS
-	std::string dirName = FileUtils::dirname("E:/Some Dir/App.exe");
-	TEST_COMPARE(dirName,"E:/Some Dir/");
+	// absolute paths
+	dirName = FileUtils::dirname("E:/Some Dir/App.exe");
+	TEST_COMPARE(dirName,"E:/Some Dir");
+	fileName = FileUtils::fileName("E:/Some Dir/App.exe");
+	TEST_COMPARE(fileName,"App.exe");
+
+	dirName = FileUtils::dirname("C:/Users/kitteh/AppData/Local/Temp/MultiMC5-yidaaa/MultiMC.exe");
+	TEST_COMPARE(dirName,"C:/Users/kitteh/AppData/Local/Temp/MultiMC5-yidaaa");
+	fileName = FileUtils::fileName("C:/Users/kitteh/AppData/Local/Temp/MultiMC5-yidaaa/MultiMC.exe");
+	TEST_COMPARE(fileName,"MultiMC.exe");
+
+#else
+	// absolute paths
+	dirName = FileUtils::dirname("/home/tester/foo bar/baz");
+	TEST_COMPARE(dirName,"/home/tester/foo bar");
+	fileName = FileUtils::fileName("/home/tester/foo bar/baz");
+	TEST_COMPARE(fileName,"baz");
 #endif
+	// current directory
+	dirName = FileUtils::dirname("App.exe");
+	TEST_COMPARE(dirName,".");
+	fileName = FileUtils::fileName("App.exe");
+	TEST_COMPARE(fileName,"App.exe");
+
+	// relative paths
+	dirName = FileUtils::dirname("Foo/App.exe");
+	TEST_COMPARE(dirName,"Foo");
+	fileName = FileUtils::fileName("Foo/App.exe");
+	TEST_COMPARE(fileName,"App.exe");
 }
 
 void TestFileUtils::testIsRelative()
diff --git a/mmc_updater/src/tests/TestParseScript.cpp b/mmc_updater/src/tests/TestParseScript.cpp
new file mode 100644
index 00000000..f4453957
--- /dev/null
+++ b/mmc_updater/src/tests/TestParseScript.cpp
@@ -0,0 +1,24 @@
+#include "TestParseScript.h"
+
+#include "TestUtils.h"
+#include "UpdateScript.h"
+
+#include <iostream>
+#include <algorithm>
+
+void TestParseScript::testParse()
+{
+	UpdateScript script;
+
+	script.parse("file_list.xml");
+
+	TEST_COMPARE(script.isValid(),true);
+}
+
+int main(int,char**)
+{
+	TestList<TestParseScript> tests;
+	tests.addTest(&TestParseScript::testParse);
+	return TestUtils::runTest(tests);
+}
+
diff --git a/mmc_updater/src/tests/TestParseScript.h b/mmc_updater/src/tests/TestParseScript.h
new file mode 100644
index 00000000..528e97a8
--- /dev/null
+++ b/mmc_updater/src/tests/TestParseScript.h
@@ -0,0 +1,8 @@
+#pragma once
+
+class TestParseScript
+{
+	public:
+		void testParse();
+};
+
diff --git a/mmc_updater/src/tests/TestUpdateScript.cpp b/mmc_updater/src/tests/TestUpdateScript.cpp
deleted file mode 100644
index 30a7572a..00000000
--- a/mmc_updater/src/tests/TestUpdateScript.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-#include "TestUpdateScript.h"
-
-#include "TestUtils.h"
-#include "UpdateScript.h"
-
-#include <iostream>
-#include <algorithm>
-
-void TestUpdateScript::testV2Script()
-{
-	UpdateScript newFormat;
-	UpdateScript oldFormat;
-
-	newFormat.parse("file_list.xml");
-	oldFormat.parse("v2_file_list.xml");
-
-	TEST_COMPARE(newFormat.filesToInstall(),oldFormat.filesToInstall());
-	TEST_COMPARE(newFormat.filesToUninstall(),oldFormat.filesToUninstall());
-}
-
-int main(int,char**)
-{
-	TestList<TestUpdateScript> tests;
-	tests.addTest(&TestUpdateScript::testV2Script);
-	return TestUtils::runTest(tests);
-}
-
diff --git a/mmc_updater/src/tests/TestUpdateScript.h b/mmc_updater/src/tests/TestUpdateScript.h
deleted file mode 100644
index 513513d5..00000000
--- a/mmc_updater/src/tests/TestUpdateScript.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-
-class TestUpdateScript
-{
-	public:
-		void testV2Script();
-};
-
diff --git a/mmc_updater/src/tests/file_list.xml b/mmc_updater/src/tests/file_list.xml
index dff4b54f..06ba501d 100644
--- a/mmc_updater/src/tests/file_list.xml
+++ b/mmc_updater/src/tests/file_list.xml
@@ -1,20 +1,5 @@
 <?xml version="1.0"?>
 <update version="3">
- <targetVersion>2.0</targetVersion>
- <platform>Test</platform>
- <dependencies>
-   <!-- The new updater is standalone and has no dependencies,
-        except for standard system libraries.
-    !-->
- </dependencies>
- <packages>
-  <package>
-   <name>app-pkg</name>
-   <hash>$APP_PACKAGE_HASH</hash>
-   <size>$APP_PACKAGE_SIZE</size>
-   <source>http://some/dummy/URL</source>
-  </package>
- </packages>
  <install>
   <file>
    <name>$APP_FILENAME</name>
diff --git a/mmc_updater/src/tests/test-update.rb b/mmc_updater/src/tests/test-update.rb
deleted file mode 100755
index 82965cf4..00000000
--- a/mmc_updater/src/tests/test-update.rb
+++ /dev/null
@@ -1,218 +0,0 @@
-#!/usr/bin/ruby
-
-require 'fileutils.rb'
-require 'find'
-require 'rbconfig'
-require 'optparse'
-
-# Install directory - this contains a space to check
-# for correct escaping of paths when passing comamnd
-# line arguments under Windows
-INSTALL_DIR = File.expand_path("install dir/")
-PACKAGE_DIR = File.expand_path("package-dir/")
-PACKAGE_SRC_DIR = File.expand_path("package-src-dir/")
-IS_WINDOWS = RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
-
-if IS_WINDOWS
-	OLDAPP_NAME = "oldapp.exe"
-	NEWAPP_NAME = "newapp.exe"
-	APP_NAME = "app.exe"
-	UPDATER_NAME = "updater.exe"
-	ZIP_TOOL = File.expand_path("../zip-tool.exe")
-else
-	OLDAPP_NAME = "oldapp"
-	NEWAPP_NAME = "newapp"
-	APP_NAME = "app"
-	UPDATER_NAME = "updater"
-	ZIP_TOOL = File.expand_path("../zip-tool")
-end
-
-file_list_vars = {
-  "APP_FILENAME" => APP_NAME,
-  "UPDATER_FILENAME" => UPDATER_NAME
-}
-
-def replace_vars(src_file,dest_file,vars)
-	content = File.read(src_file)
-	vars.each do |key,value|
-		content.gsub! "$#{key}",value
-	end
-	File.open(dest_file,'w') do |file|
-		file.print content
-	end
-end
-
-# Returns true if |src_file| and |dest_file| have the same contents, type
-# and permissions or false otherwise
-def compare_files(src_file, dest_file)
-	if File.ftype(src_file) != File.ftype(dest_file)
-		$stderr.puts "Type of file #{src_file} and #{dest_file} differ"
-		return false
-	end
-
-	if File.file?(src_file) && !FileUtils.identical?(src_file, dest_file)
-		$stderr.puts "Contents of file #{src_file} and #{dest_file} differ"
-		return false
-	end
-
-	src_stat = File.stat(src_file)
-	dest_stat = File.stat(dest_file)
-
-	if src_stat.mode != dest_stat.mode
-		$stderr.puts "Permissions of #{src_file} and #{dest_file} differ"
-		return false
-	end
-
-	return true
-end
-
-# Compares the contents of two directories and returns a map of (file path => change type)
-# for files and directories which differ between the two
-def compare_dirs(src_dir, dest_dir)
-	src_dir += '/' if !src_dir.end_with?('/')
-	dest_dir += '/' if !dest_dir.end_with?('/')
-
-	src_file_map = {}
-	Find.find(src_dir) do |src_file|
-		src_file = src_file[src_dir.length..-1]
-		src_file_map[src_file] = nil
-	end
-
-	change_map = {}
-	Find.find(dest_dir) do |dest_file|
-		dest_file = dest_file[dest_dir.length..-1]
-
-		if !src_file_map.include?(dest_file)
-			change_map[dest_file] = :deleted
-		elsif !compare_files("#{src_dir}/#{dest_file}", "#{dest_dir}/#{dest_file}")
-			change_map[dest_file] = :updated
-		end
-
-		src_file_map.delete(dest_file)
-	end
-
-	src_file_map.each do |file|
-		change_map[file] = :added
-	end
-
-	return change_map
-end
-
-def create_test_file(name, content)
-	File.open(name, 'w') do |file|
-		file.puts content
-	end
-	return name
-end
-
-force_elevation = false
-run_in_debugger = false
-
-OptionParser.new do |parser|
-	parser.on("-f","--force-elevated","Force the updater to elevate itself") do
-		force_elevation = true
-	end
-	parser.on("-d","--debug","Run the updater under GDB") do
-		run_in_debugger = true
-	end
-end.parse!
-
-# copy 'src' to 'dest', preserving the attributes
-# of 'src'
-def copy_file(src, dest)
-	FileUtils.cp src, dest, :preserve => true
-end
-
-# Remove the install and package dirs if they
-# already exist
-FileUtils.rm_rf(INSTALL_DIR)
-FileUtils.rm_rf(PACKAGE_DIR)
-FileUtils.rm_rf(PACKAGE_SRC_DIR)
-
-# Create the install directory with the old app
-Dir.mkdir(INSTALL_DIR)
-copy_file OLDAPP_NAME, "#{INSTALL_DIR}/#{APP_NAME}"
-
-# Create a dummy file to uninstall
-uninstall_test_file = create_test_file("#{INSTALL_DIR}/file-to-uninstall.txt", "this file should be removed after the update")
-uninstall_test_symlink = if not IS_WINDOWS
-	FileUtils.ln_s("#{INSTALL_DIR}/file-to-uninstall.txt", "#{INSTALL_DIR}/symlink-to-file-to-uninstall.txt")
-else
-	create_test_file("#{INSTALL_DIR}/symlink-to-file-to-uninstall.txt", "dummy file.  this is a symlink on Unix")
-end
-
-# Populate package source dir with files to install
-Dir.mkdir(PACKAGE_SRC_DIR)
-nested_dir_path = "#{PACKAGE_SRC_DIR}/new-dir/new-dir2"
-FileUtils.mkdir_p(nested_dir_path)
-FileUtils::chmod 0755, "#{PACKAGE_SRC_DIR}/new-dir"
-FileUtils::chmod 0755, "#{PACKAGE_SRC_DIR}/new-dir/new-dir2"
-nested_dir_test_file = "#{nested_dir_path}/new-file.txt"
-File.open(nested_dir_test_file,'w') do |file|
-	file.puts "this is a new file in a new nested dir"
-end
-FileUtils::chmod 0644, nested_dir_test_file
-copy_file NEWAPP_NAME, "#{PACKAGE_SRC_DIR}/#{APP_NAME}"
-FileUtils::chmod 0755, "#{PACKAGE_SRC_DIR}/#{APP_NAME}"
-
-# Create .zip packages from source files
-Dir.mkdir(PACKAGE_DIR)
-Dir.chdir(PACKAGE_SRC_DIR) do
-	if !system("#{ZIP_TOOL} #{PACKAGE_DIR}/app-pkg.zip .")
-		raise "Unable to create update package"
-	end
-end
-
-# Copy the install script and updater to the target
-# directory
-replace_vars("file_list.xml","#{PACKAGE_DIR}/file_list.xml",file_list_vars)
-copy_file "../#{UPDATER_NAME}", "#{PACKAGE_DIR}/#{UPDATER_NAME}"
-
-# Run the updater using the new syntax
-#
-# Run the application from the install directory to
-# make sure that it looks in the correct directory for
-# the file_list.xml file and packages
-#
-install_path = File.expand_path(INSTALL_DIR)
-Dir.chdir(INSTALL_DIR) do
-	flags = "--force-elevated" if force_elevation
-	debug_flags = "gdb --args" if run_in_debugger
-	cmd = "#{debug_flags} #{PACKAGE_DIR}/#{UPDATER_NAME} #{flags} --install-dir \"#{install_path}\" --package-dir \"#{PACKAGE_DIR}\" --script file_list.xml --auto-close"
-	puts "Running '#{cmd}'"
-	system(cmd)
-end
-
-# TODO - Correctly wait until updater has finished
-sleep(1)
-
-# Check that the app was updated
-app_path = "#{INSTALL_DIR}/#{APP_NAME}"
-output = `"#{app_path}"`
-if (output.strip != "new app starting")
-	throw "Updated app produced unexpected output: #{output}"
-end
-
-# Check that the packaged dir and install dir match
-dir_diff = compare_dirs(PACKAGE_SRC_DIR, INSTALL_DIR)
-ignored_files = ["test-dir", "test-dir/app-symlink", UPDATER_NAME]
-have_unexpected_change = false
-dir_diff.each do |path, change_type|
-	if !ignored_files.include?(path)
-		case change_type
-		when :added
-			$stderr.puts "File #{path} was not installed"
-		when :changed
-			$stderr.puts "File #{path} differs between install and package dir"
-		when :deleted
-			$stderr.puts "File #{path} was not uninstalled"
-		end
-		have_unexpected_change = true
-	end
-end
-
-if have_unexpected_change
-	throw "Unexpected differences between packaging and update dir"
-end
-
-puts "Test passed"
diff --git a/mmc_updater/src/tests/test.manifest b/mmc_updater/src/tests/test.manifest
new file mode 100644
index 00000000..8b4dbb98
--- /dev/null
+++ b/mmc_updater/src/tests/test.manifest
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <assemblyIdentity name="MultiMC.Test.0" type="win32" version="5.0.0.0" />
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*"/>
+    </dependentAssembly>
+  </dependency>
+  <description>Custom Minecraft launcher for managing multiple installs.</description>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!--The ID below indicates app support for Windows Vista -->
+      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+      <!--The ID below indicates app support for Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+      <!--The ID below indicates app support for Windows Developer Preview / Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+    </application> 
+  </compatibility>
+</assembly>
\ No newline at end of file
diff --git a/mmc_updater/src/tests/test.rc b/mmc_updater/src/tests/test.rc
new file mode 100644
index 00000000..a288dba6
--- /dev/null
+++ b/mmc_updater/src/tests/test.rc
@@ -0,0 +1,28 @@
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+
+1 RT_MANIFEST "test.manifest"
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION     1,0,0,0
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
+BEGIN
+        BLOCK "StringFileInfo"
+        BEGIN
+                BLOCK "000004b0"
+                BEGIN
+                        VALUE "CompanyName", "MultiMC Contributors"
+                        VALUE "FileDescription", "Testcase"
+                        VALUE "FileVersion", "1.0.0.0"
+                        VALUE "ProductName", "MultiMC Testcase"
+                        VALUE "ProductVersion", "5"
+                END
+        END
+        BLOCK "VarFileInfo"
+        BEGIN
+                VALUE "Translation", 0x0000, 0x04b0 // Unicode
+        END
+END
diff --git a/mmc_updater/src/tests/v2_file_list.xml b/mmc_updater/src/tests/v2_file_list.xml
deleted file mode 100644
index 202e5bbe..00000000
--- a/mmc_updater/src/tests/v2_file_list.xml
+++ /dev/null
@@ -1,67 +0,0 @@
-<?xml version="1.0"?>
-
-<!-- The v2-compatible attribute lets the update script parser
-     know that it is dealing with a script structured for backwards
-     compatibility with the MD <= 1.0 updater.
-!-->
-<update version="3" v2-compatible="true">
- <targetVersion>2.0</targetVersion>
- <platform>Test</platform>
- <dependencies>
-   <!-- The new updater is standalone and has no dependencies,
-        except for standard system libraries and itself.
-    !-->
- </dependencies>
- <packages>
-  <package>
-   <name>app-pkg</name>
-   <hash>$APP_PACKAGE_HASH</hash>
-   <size>$APP_PACKAGE_SIZE</size>
-   <source>http://some/dummy/URL</source>
-  </package>
- </packages>
-
- <!-- For compatibility with the update download in MD <= 1.0,
-      an <install> section lists the packages to download and
-      the real list of files to install is in the <install-v3>
-      section. !-->
- <install>
-   <!-- A duplicate of the <packages> section should appear here,
-        except that each package is listed using the same structure
-	    as files in the install-v3/files section.
-	!-->
- </install>
- <install-v3>
-  <file>
-   <name>$APP_FILENAME</name>
-   <hash>$UPDATED_APP_HASH</hash>
-   <size>$UPDATED_APP_SIZE</size>
-   <permissions>0755</permissions>
-   <package>app-pkg</package>
-   <is-main-binary>true</is-main-binary>
-  </file>
-  <file>
-   <name>$UPDATER_FILENAME</name>
-   <hash>$UPDATER_HASH</hash>
-   <size>$UPDATER_SIZE</size>
-   <permissions>0755</permissions>
-  </file>
-  <!-- Test symlink !-->
-  <file>
-   <name>test-dir/app-symlink</name>
-   <target>../app</target>
-  </file>
-  <file>
-   <name>new-dir/new-dir2/new-file.txt</name>
-   <hash>$TEST_FILENAME</hash>
-   <size>$TEST_SIZE</size>
-   <package>app-pkg</package>
-   <permissions>0644</permissions>
-  </file>
- </install-v3>
- <uninstall>
-  <!-- TODO - List some files to uninstall here !-->
-  <file>file-to-uninstall.txt</file>
-  <file>symlink-to-file-to-uninstall.txt</file>
- </uninstall>
-</update>
diff --git a/multimc.rc b/multimc.rc
index decf7d3a..2140e3f4 100644
--- a/multimc.rc
+++ b/multimc.rc
@@ -1 +1,29 @@
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+
 IDI_ICON1               ICON    DISCARDABLE     "resources/icons/MultiMC.ico"
+1 RT_MANIFEST "MultiMC.manifest"
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION     1,0,0,0
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
+BEGIN
+        BLOCK "StringFileInfo"
+        BEGIN
+                BLOCK "000004b0"
+                BEGIN
+                        VALUE "CompanyName", "MultiMC Contributors"
+                        VALUE "FileDescription", "Minecraft Launcher"
+                        VALUE "FileVersion", "1.0.0.0"
+                        VALUE "ProductName", "MultiMC"
+                        VALUE "ProductVersion", "5"
+                END
+        END
+        BLOCK "VarFileInfo"
+        BEGIN
+                VALUE "Translation", 0x0000, 0x04b0 // Unicode
+        END
+END
diff --git a/package/linux/MultiMC b/package/linux/MultiMC
index 8229b24f..7fb72f98 100755
--- a/package/linux/MultiMC
+++ b/package/linux/MultiMC
@@ -1,7 +1,20 @@
-#!/bin/sh
+#!/bin/bash
 # Basic start script for running MultiMC with the libs packaged with it.
 
-MMC_DIR=`dirname "$0"`
+function printerror {
+	printf "$1"
+	if which zenity >/dev/null; then zenity --error --text="$1" &>/dev/null;
+	elif which kdialog >/dev/null; then kdialog --error "$1" &>/dev/null;
+	fi
+}
+
+if [[ $EUID -eq 0 ]]; then
+    printerror "This program should not be run using sudo or as the root user!\n"
+    exit 1
+fi
+
+
+MMC_DIR="$(dirname "$(readlink -f "$0")")"
 cd "${MMC_DIR}"
 echo "MultiMC Dir: ${MMC_DIR}"
 
@@ -11,8 +24,8 @@ export QT_PLUGIN_PATH="${MMC_DIR}/plugins"
 export QT_FONTPATH="${MMC_DIR}/fonts"
 
 # Detect missing dependencies...
-DEPS_LIST=`ldd "${MMC_DIR}"/plugins/*/*.so | grep "not found" | awk -vORS=", " '{ print $1 }'`
-if [ -z $DEPS_LIST ]; then
+DEPS_LIST=`ldd "${MMC_DIR}"/plugins/*/*.so 2>/dev/null | grep "not found" | awk -vORS=", " '{ print $1 }'`
+if [ "x$DEPS_LIST" = "x" ]; then
 	# We have all our dependencies. Run MultiMC.
 	echo "No missing dependencies found."
 
@@ -25,9 +38,41 @@ if [ -z $DEPS_LIST ]; then
 	# Exit with MultiMC's exit code.
 	exit $?
 else
-	echo "Error: MultiMC is missing the following libraries that it needs to work correctly:"
-	echo "\t${DEPS_LIST}"
-	echo "Please install them from your distribution's package manager."
+	# apt
+	if which apt-file &>/dev/null; then
+		LIBRARIES=`echo "$DEPS_LIST" | grep -oP "[^, ]*"`
+		COMMAND_LIBS=`for LIBRARY in $LIBRARIES; do apt-file -l search $LIBRARY; done`
+		COMMAND_LIBS=`echo "$COMMAND_LIBS" | awk -vORS=" " '{ print $1 }'`
+		INSTALL_CMD="sudo apt-get install $COMMAND_LIBS"
+	# pacman
+	elif which pkgfile &>/dev/null; then
+		LIBRARIES=`echo "$DEPS_LIST" | grep -oP "[^, ]*"`
+		COMMAND_LIBS=`for LIBRARY in $LIBRARIES; do pkgfile $LIBRARY; done`
+		COMMAND_LIBS=`echo "$COMMAND_LIBS" | awk -vORS=" " '{ print $1 }'`
+		INSTALL_CMD="sudo pacman -S $COMMAND_LIBS"
+	# yum
+	elif which yum &>/dev/null; then
+		LIBRARIES=`echo "$DEPS_LIST" | grep -oP "[^, ]*"`
+		COMMAND_LIBS=`for LIBRARY in $LIBRARIES; do yum whatprovides $LIBRARY; done`
+		COMMAND_LIBS=`echo "$COMMAND_LIBS" | awk -vORS=" " '{ print $1 }'`
+		INSTALL_CMD="sudo yum install $COMMAND_LIBS"
+	# zypper
+	elif which zypper &>/dev/null; then
+		LIBRARIES=`echo "$DEPS_LIST" | grep -oP "[^, ]*"`
+		COMMAND_LIBS=`for LIBRARY in $LIBRARIES; do zypper wp $LIBRARY; done`
+		COMMAND_LIBS=`echo "$COMMAND_LIBS" | awk -vORS=" " '{ print $1 }'`
+		INSTALL_CMD="sudo zypper install $COMMAND_LIBS"
+	# emerge
+	elif which pfl &>/dev/null; then
+		LIBRARIES=`echo "$DEPS_LIST" | grep -oP "[^, ]*"`
+		COMMAND_LIBS=`for LIBRARY in $LIBRARIES; do pfl $LIBRARY; done`
+		COMMAND_LIBS=`echo "$COMMAND_LIBS" | awk -vORS=" " '{ print $1 }'`
+		INSTALL_CMD="sudo emerge $COMMAND_LIBS"
+	fi
+
+	MESSAGE="Error: MultiMC is missing the following libraries that it needs to work correctly:\n\t${DEPS_LIST}\nPlease install them from your distribution's package manager."
+	MESSAGE="$MESSAGE\n\nHint: $INSTALL_CMD\n"
+
+	printerror "$MESSAGE"
 	exit 1
 fi
-
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index e115af17..2d851404 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -8,6 +8,9 @@ macro(add_unit_test name)
 	unset(srcs)
 	foreach(arg ${testname} ${ARGN})
 		list(APPEND srcs ${CMAKE_CURRENT_SOURCE_DIR}/${arg})
+	if (WIN32)
+		list(APPEND srcs ${CMAKE_CURRENT_SOURCE_DIR}/test.rc)
+	endif()
 	endforeach()
 	add_executable(tst_${name} ${srcs})
 	qt5_use_modules(tst_${name} Test Core Network Widgets)
@@ -20,6 +23,8 @@ endmacro()
 
 add_unit_test(pathutils tst_pathutils.cpp)
 add_unit_test(userutils tst_userutils.cpp)
+add_unit_test(UpdateChecker tst_UpdateChecker.cpp)
+add_unit_test(DownloadUpdateTask tst_DownloadUpdateTask.cpp)
 
 # Tests END #
 	
@@ -79,4 +84,9 @@ if(MultiMC_CODE_COVERAGE)
 	add_custom_target(MultiMC_RUN_TESTS DEPENDS MultiMC_GENERATE_COVERAGE_HTML)
 endif(MultiMC_CODE_COVERAGE)
 
-add_subdirectory(data)
+
+add_custom_target(MultiMC_Test_Data
+ ALL
+ COMMAND ${CMAKE_COMMAND} -E remove_directory ${CMAKE_CURRENT_BINARY_DIR}/data
+ COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR}/data ${CMAKE_CURRENT_BINARY_DIR}/data
+)
diff --git a/tests/TestUtil.h b/tests/TestUtil.h
index 64ee1675..fd25d24f 100644
--- a/tests/TestUtil.h
+++ b/tests/TestUtil.h
@@ -15,15 +15,30 @@ struct TestsInternal
                 f.open(QFile::ReadOnly);
                 return f.readAll();
         }
+		static QString readFileUtf8(const QString &fileName)
+		{
+			return QString::fromUtf8(readFile(fileName));
+		}
 };
 
 #define MULTIMC_GET_TEST_FILE(file) TestsInternal::readFile(QFINDTESTDATA( file ))
+#define MULTIMC_GET_TEST_FILE_UTF8(file) TestsInternal::readFileUtf8(QFINDTESTDATA( file ))
 
+#ifdef Q_OS_LINUX
+# define _MMC_EXTRA_ARGV , "-platform", "offscreen"
+# define _MMC_EXTRA_ARGC 2
+#else
+# define _MMC_EXTRA_ARGV
+# define _MMC_EXTRA_ARGC 0
+#endif
+	
+	
+	
 #define QTEST_GUILESS_MAIN_MULTIMC(TestObject) \
 int main(int argc, char *argv[]) \
 { \
-	char *argv_[] = { argv[0] }; \
-	int argc_ = 1; \
+	char *argv_[] = { argv[0] _MMC_EXTRA_ARGV }; \
+	int argc_ = 1 + _MMC_EXTRA_ARGC; \
 	MultiMC app(argc_, argv_, QDir::temp().absoluteFilePath("MultiMC_Test")); \
 	app.setAttribute(Qt::AA_Use96Dpi, true); \
 	TestObject tc; \
diff --git a/tests/data/.gitattributes b/tests/data/.gitattributes
new file mode 100644
index 00000000..9ac803f0
--- /dev/null
+++ b/tests/data/.gitattributes
@@ -0,0 +1,2 @@
+* -text -diff
+
diff --git a/tests/data/1.json b/tests/data/1.json
new file mode 100644
index 00000000..f9f99b22
--- /dev/null
+++ b/tests/data/1.json
@@ -0,0 +1,43 @@
+{
+	"ApiVersion": 0,
+	"Id": 1,
+	"Name": "1.0.1",
+	"Files": [
+		{
+			"Path": "fileOne",
+			"Sources": [
+				{
+					"SourceType": "http",
+					"Url": "$PWD/tests/data/fileOneA"
+				}
+			],
+			"Executable": true,
+			"Perms": 493,
+			"MD5": "9eb84090956c484e32cb6c08455a667b"
+		},
+		{
+			"Path": "fileTwo",
+			"Sources": [
+				{
+					"SourceType": "http",
+					"Url": "$PWD/tests/data/fileTwo"
+				}
+			],
+			"Executable": false,
+			"Perms": 644,
+			"MD5": "38f94f54fa3eb72b0ea836538c10b043"
+		},
+		{
+			"Path": "fileThree",
+			"Sources": [
+				{
+					"SourceType": "http",
+					"Url": "$PWD/tests/data/fileThree"
+				}
+			],
+			"Executable": false,
+			"Perms": "750",
+			"MD5": "f12df554b21e320be6471d7154130e70"
+		}
+	]
+}
diff --git a/tests/data/2.json b/tests/data/2.json
new file mode 100644
index 00000000..bb59b9b6
--- /dev/null
+++ b/tests/data/2.json
@@ -0,0 +1,31 @@
+{
+	"ApiVersion": 0,
+	"Id": 1,
+	"Name": "1.0.1",
+	"Files": [
+		{
+			"Path": "fileOne",
+			"Sources": [
+				{
+					"SourceType": "http",
+					"Url": "$PWD/tests/data/fileOneB"
+				}
+			],
+			"Executable": true,
+			"Perms": 493,
+			"MD5": "42915a71277c9016668cce7b82c6b577"
+		},
+		{
+			"Path": "fileTwo",
+			"Sources": [
+				{
+					"SourceType": "http",
+					"Url": "$PWD/tests/data/fileTwo"
+				}
+			],
+			"Executable": false,
+			"Perms": 644,
+			"MD5": "38f94f54fa3eb72b0ea836538c10b043"
+		}
+	]
+}
diff --git a/tests/data/CMakeLists.txt b/tests/data/CMakeLists.txt
deleted file mode 100644
index eee5a596..00000000
--- a/tests/data/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-add_custom_target(MultiMC_Test_Data
- ALL
- COMMAND ${CMAKE_COMMAND} -E copy_directory ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
-)
diff --git a/tests/data/channels.json b/tests/data/channels.json
new file mode 100644
index 00000000..6bf65a82
--- /dev/null
+++ b/tests/data/channels.json
@@ -0,0 +1,23 @@
+{
+	"format_version": 0,
+	"channels": [
+		{
+			"id": "develop",
+			"name": "Develop",
+			"description": "The channel called \"develop\"",
+			"url": "$PWD/tests/data/"
+		},
+		{
+			"id": "stable",
+			"name": "Stable",
+			"description": "It's stable at least",
+			"url": "ftp://username@host/path/to/stuff"
+		},
+		{
+			"id": "42",
+			"name": "The Channel",
+			"description": "This is the channel that is going to answer all of your questions",
+			"url": "https://dent.me/tea"
+		}
+	]
+}
diff --git a/tests/data/errorChannels.json b/tests/data/errorChannels.json
new file mode 100644
index 00000000..333cd445
--- /dev/null
+++ b/tests/data/errorChannels.json
@@ -0,0 +1,23 @@
+{
+	"format_version": 0,
+	"channels": [
+		{
+			"id": "",
+			"name": "Develop",
+			"description": "The channel called \"develop\"",
+			"url": "http://example.org/stuff"
+		},
+		{
+			"id": "stable",
+			"name": "",
+			"description": "It's stable at least",
+			"url": "ftp://username@host/path/to/stuff"
+		},
+		{
+			"id": "42",
+			"name": "The Channel",
+			"description": "This is the channel that is going to answer all of your questions",
+			"url": ""
+		}
+	]
+}
diff --git a/tests/data/fileOneA b/tests/data/fileOneA
new file mode 100644
index 00000000..f2e41136
--- /dev/null
+++ b/tests/data/fileOneA
@@ -0,0 +1 @@
+stuff
diff --git a/tests/data/fileOneB b/tests/data/fileOneB
new file mode 100644
index 00000000..f9aba922
--- /dev/null
+++ b/tests/data/fileOneB
@@ -0,0 +1,3 @@
+stuff
+
+more stuff that came in the new version
diff --git a/tests/data/fileThree b/tests/data/fileThree
new file mode 100644
index 00000000..6353ff16
--- /dev/null
+++ b/tests/data/fileThree
@@ -0,0 +1 @@
+this is yet another file
diff --git a/tests/data/fileTwo b/tests/data/fileTwo
new file mode 100644
index 00000000..aad9a93a
--- /dev/null
+++ b/tests/data/fileTwo
@@ -0,0 +1 @@
+some other stuff
diff --git a/tests/data/garbageChannels.json b/tests/data/garbageChannels.json
new file mode 100644
index 00000000..1450fb9c
--- /dev/null
+++ b/tests/data/garbageChannels.json
@@ -0,0 +1,22 @@
+{
+	"format_version": 0,
+	"channels": [
+		{
+			"id": "develop",
+			"name": "Develop",
+			"description": "The channel called \"develop\"",
+aa			"url": "http://example.org/stuff"
+		},
+a			"id": "stable",
+			"name": "Stable",
+			"description": "It's stable at least",
+			"url": "ftp://username@host/path/to/stuff"
+		},
+		{
+			"id": "42"f
+			"name": "The Channel",
+			"description": "This is the channel that is going to answer all of your questions",
+			"url": "https://dent.me/tea"
+		}
+	]
+}
diff --git a/tests/data/index.json b/tests/data/index.json
new file mode 100644
index 00000000..20ceb9f4
--- /dev/null
+++ b/tests/data/index.json
@@ -0,0 +1,9 @@
+{
+	"ApiVersion": 0,
+	"Versions": [
+		{ "Id": 0, "Name": "1.0.0" },
+		{ "Id": 1, "Name": "1.0.1" },
+		{ "Id": 2, "Name": "1.0.2" },
+		{ "Id": 3, "Name": "1.0.3" }
+	]
+}
diff --git a/tests/data/noChannels.json b/tests/data/noChannels.json
new file mode 100644
index 00000000..bbb2cb70
--- /dev/null
+++ b/tests/data/noChannels.json
@@ -0,0 +1,5 @@
+{
+	"format_version": 0,
+	"channels": [
+	]
+}
diff --git a/tests/data/oneChannel.json b/tests/data/oneChannel.json
new file mode 100644
index 00000000..84727ac7
--- /dev/null
+++ b/tests/data/oneChannel.json
@@ -0,0 +1,11 @@
+{
+	"format_version": 0,
+	"channels": [
+		{
+			"id": "develop",
+			"name": "Develop",
+			"description": "The channel called \"develop\"",
+			"url": "http://example.org/stuff"
+		}
+	]
+}
diff --git a/tests/data/tst_DownloadUpdateTask-test_writeInstallScript.xml b/tests/data/tst_DownloadUpdateTask-test_writeInstallScript.xml
new file mode 100644
index 00000000..09c162ca
--- /dev/null
+++ b/tests/data/tst_DownloadUpdateTask-test_writeInstallScript.xml
@@ -0,0 +1,17 @@
+<update version="3">
+ <install>
+  <file>
+   <source>sourceOne</source>
+   <dest>destOne</dest>
+   <mode>0777</mode>
+  </file>
+  <file>
+   <source>MultiMC.exe</source>
+   <dest>M/u/l/t/i/M/C/e/x/e</dest>
+   <mode>0644</mode>
+  </file>
+ </install>
+ <uninstall>
+  <file>toDelete.abc</file>
+ </uninstall>
+</update>
diff --git a/tests/test.manifest b/tests/test.manifest
new file mode 100644
index 00000000..8b4dbb98
--- /dev/null
+++ b/tests/test.manifest
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <assemblyIdentity name="MultiMC.Test.0" type="win32" version="5.0.0.0" />
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="x86" publicKeyToken="6595b64144ccf1df" language="*"/>
+    </dependentAssembly>
+  </dependency>
+  <description>Custom Minecraft launcher for managing multiple installs.</description>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!--The ID below indicates app support for Windows Vista -->
+      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+      <!--The ID below indicates app support for Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+      <!--The ID below indicates app support for Windows Developer Preview / Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+    </application> 
+  </compatibility>
+</assembly>
\ No newline at end of file
diff --git a/tests/test.rc b/tests/test.rc
new file mode 100644
index 00000000..a288dba6
--- /dev/null
+++ b/tests/test.rc
@@ -0,0 +1,28 @@
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+
+1 RT_MANIFEST "test.manifest"
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION     1,0,0,0
+FILEOS          VOS_NT_WINDOWS32
+FILETYPE        VFT_APP
+BEGIN
+        BLOCK "StringFileInfo"
+        BEGIN
+                BLOCK "000004b0"
+                BEGIN
+                        VALUE "CompanyName", "MultiMC Contributors"
+                        VALUE "FileDescription", "Testcase"
+                        VALUE "FileVersion", "1.0.0.0"
+                        VALUE "ProductName", "MultiMC Testcase"
+                        VALUE "ProductVersion", "5"
+                END
+        END
+        BLOCK "VarFileInfo"
+        BEGIN
+                VALUE "Translation", 0x0000, 0x04b0 // Unicode
+        END
+END
diff --git a/tests/tst_DownloadUpdateTask.cpp b/tests/tst_DownloadUpdateTask.cpp
new file mode 100644
index 00000000..3b2c6793
--- /dev/null
+++ b/tests/tst_DownloadUpdateTask.cpp
@@ -0,0 +1,271 @@
+#include <QTest>
+#include <QSignalSpy>
+
+#include "TestUtil.h"
+
+#include "logic/updater/DownloadUpdateTask.h"
+#include "logic/updater/UpdateChecker.h"
+#include "depends/util/include/pathutils.h"
+
+DownloadUpdateTask::FileSourceList encodeBaseFile(const char *suffix)
+{
+	auto base = qApp->applicationDirPath();
+	QUrl localFile = QUrl::fromLocalFile(base + suffix);
+	QString localUrlString = localFile.toString(QUrl::FullyEncoded);
+	auto item = DownloadUpdateTask::FileSource("http", localUrlString);
+	return DownloadUpdateTask::FileSourceList({item});
+}
+
+Q_DECLARE_METATYPE(DownloadUpdateTask::VersionFileList)
+Q_DECLARE_METATYPE(DownloadUpdateTask::UpdateOperation)
+
+bool operator==(const DownloadUpdateTask::FileSource &f1,
+				const DownloadUpdateTask::FileSource &f2)
+{
+	return f1.type == f2.type && f1.url == f2.url && f1.compressionType == f2.compressionType;
+}
+bool operator==(const DownloadUpdateTask::VersionFileEntry &v1,
+				const DownloadUpdateTask::VersionFileEntry &v2)
+{
+	return v1.path == v2.path && v1.mode == v2.mode && v1.sources == v2.sources &&
+		   v1.md5 == v2.md5;
+}
+bool operator==(const DownloadUpdateTask::UpdateOperation &u1,
+				const DownloadUpdateTask::UpdateOperation &u2)
+{
+	return u1.type == u2.type && u1.file == u2.file && u1.dest == u2.dest && u1.mode == u2.mode;
+}
+
+QDebug operator<<(QDebug dbg, const DownloadUpdateTask::FileSource &f)
+{
+	dbg.nospace() << "FileSource(type=" << f.type << " url=" << f.url
+				  << " comp=" << f.compressionType << ")";
+	return dbg.maybeSpace();
+}
+
+QDebug operator<<(QDebug dbg, const DownloadUpdateTask::VersionFileEntry &v)
+{
+	dbg.nospace() << "VersionFileEntry(path=" << v.path << " mode=" << v.mode
+				  << " md5=" << v.md5 << " sources=" << v.sources << ")";
+	return dbg.maybeSpace();
+}
+
+QDebug operator<<(QDebug dbg, const DownloadUpdateTask::UpdateOperation::Type &t)
+{
+	switch (t)
+	{
+	case DownloadUpdateTask::UpdateOperation::OP_COPY:
+		dbg << "OP_COPY";
+		break;
+	case DownloadUpdateTask::UpdateOperation::OP_DELETE:
+		dbg << "OP_DELETE";
+		break;
+	case DownloadUpdateTask::UpdateOperation::OP_MOVE:
+		dbg << "OP_MOVE";
+		break;
+	case DownloadUpdateTask::UpdateOperation::OP_CHMOD:
+		dbg << "OP_CHMOD";
+		break;
+	}
+	return dbg.maybeSpace();
+}
+
+QDebug operator<<(QDebug dbg, const DownloadUpdateTask::UpdateOperation &u)
+{
+	dbg.nospace() << "UpdateOperation(type=" << u.type << " file=" << u.file
+				  << " dest=" << u.dest << " mode=" << u.mode << ")";
+	return dbg.maybeSpace();
+}
+
+class DownloadUpdateTaskTest : public QObject
+{
+	Q_OBJECT
+private
+slots:
+	void initTestCase()
+	{
+	}
+	void cleanupTestCase()
+	{
+	}
+
+	void test_writeInstallScript()
+	{
+		DownloadUpdateTask task(
+			QUrl::fromLocalFile(QDir::current().absoluteFilePath("tests/data/")).toString(), 0);
+
+		DownloadUpdateTask::UpdateOperationList ops;
+
+		ops << DownloadUpdateTask::UpdateOperation::CopyOp("sourceOne", "destOne", 0777)
+			<< DownloadUpdateTask::UpdateOperation::CopyOp("MultiMC.exe", "M/u/l/t/i/M/C/e/x/e")
+			<< DownloadUpdateTask::UpdateOperation::DeleteOp("toDelete.abc");
+		auto testFile = "tests/data/tst_DownloadUpdateTask-test_writeInstallScript.xml";
+		const QString script = QDir::temp().absoluteFilePath("MultiMCUpdateScript.xml");
+		QVERIFY(task.writeInstallScript(ops, script));
+		QCOMPARE(TestsInternal::readFileUtf8(script).replace(QRegExp("[\r\n]+"), "\n"),
+				 MULTIMC_GET_TEST_FILE_UTF8(testFile).replace(QRegExp("[\r\n]+"), "\n"));
+	}
+
+	void test_parseVersionInfo_data()
+	{
+		QTest::addColumn<QByteArray>("data");
+		QTest::addColumn<DownloadUpdateTask::VersionFileList>("list");
+		QTest::addColumn<QString>("error");
+		QTest::addColumn<bool>("ret");
+
+		QTest::newRow("one")
+			<< MULTIMC_GET_TEST_FILE("tests/data/1.json")
+			<< (DownloadUpdateTask::VersionFileList()
+				<< DownloadUpdateTask::VersionFileEntry{"fileOne",
+														493,
+														encodeBaseFile("/tests/data/fileOneA"),
+														"9eb84090956c484e32cb6c08455a667b"}
+				<< DownloadUpdateTask::VersionFileEntry{"fileTwo",
+														644,
+														encodeBaseFile("/tests/data/fileTwo"),
+														"38f94f54fa3eb72b0ea836538c10b043"}
+				<< DownloadUpdateTask::VersionFileEntry{"fileThree",
+														750,
+														encodeBaseFile("/tests/data/fileThree"),
+														"f12df554b21e320be6471d7154130e70"})
+			<< QString() << true;
+		QTest::newRow("two")
+			<< MULTIMC_GET_TEST_FILE("tests/data/2.json")
+			<< (DownloadUpdateTask::VersionFileList()
+				<< DownloadUpdateTask::VersionFileEntry{"fileOne",
+														493,
+														encodeBaseFile("/tests/data/fileOneB"),
+														"42915a71277c9016668cce7b82c6b577"}
+				<< DownloadUpdateTask::VersionFileEntry{"fileTwo",
+														644,
+														encodeBaseFile("/tests/data/fileTwo"),
+														"38f94f54fa3eb72b0ea836538c10b043"})
+			<< QString() << true;
+	}
+	void test_parseVersionInfo()
+	{
+		QFETCH(QByteArray, data);
+		QFETCH(DownloadUpdateTask::VersionFileList, list);
+		QFETCH(QString, error);
+		QFETCH(bool, ret);
+
+		DownloadUpdateTask::VersionFileList outList;
+		QString outError;
+		bool outRet = DownloadUpdateTask("", 0).parseVersionInfo(data, &outList, &outError);
+		QCOMPARE(outRet, ret);
+		QCOMPARE(outList, list);
+		QCOMPARE(outError, error);
+	}
+
+	void test_processFileLists_data()
+	{
+		QTest::addColumn<DownloadUpdateTask *>("downloader");
+		QTest::addColumn<DownloadUpdateTask::VersionFileList>("currentVersion");
+		QTest::addColumn<DownloadUpdateTask::VersionFileList>("newVersion");
+		QTest::addColumn<DownloadUpdateTask::UpdateOperationList>("expectedOperations");
+
+		DownloadUpdateTask *downloader = new DownloadUpdateTask(QString(), -1);
+
+		// update fileOne, keep fileTwo, remove fileThree
+		QTest::newRow("test 1")
+			<< downloader << (DownloadUpdateTask::VersionFileList()
+							  << DownloadUpdateTask::VersionFileEntry{
+									 "tests/data/fileOne", 493,
+									 DownloadUpdateTask::FileSourceList()
+										 << DownloadUpdateTask::FileSource(
+												"http", "http://host/path/fileOne-1"),
+									 "9eb84090956c484e32cb6c08455a667b"}
+							  << DownloadUpdateTask::VersionFileEntry{
+									 "tests/data/fileTwo", 644,
+									 DownloadUpdateTask::FileSourceList()
+										 << DownloadUpdateTask::FileSource(
+												"http", "http://host/path/fileTwo-1"),
+									 "38f94f54fa3eb72b0ea836538c10b043"}
+							  << DownloadUpdateTask::VersionFileEntry{
+									 "tests/data/fileThree", 420,
+									 DownloadUpdateTask::FileSourceList()
+										 << DownloadUpdateTask::FileSource(
+												"http", "http://host/path/fileThree-1"),
+									 "f12df554b21e320be6471d7154130e70"})
+			<< (DownloadUpdateTask::VersionFileList()
+				<< DownloadUpdateTask::VersionFileEntry{
+					   "tests/data/fileOne", 493,
+					   DownloadUpdateTask::FileSourceList()
+						   << DownloadUpdateTask::FileSource("http",
+															 "http://host/path/fileOne-2"),
+					   "42915a71277c9016668cce7b82c6b577"}
+				<< DownloadUpdateTask::VersionFileEntry{
+					   "tests/data/fileTwo", 644,
+					   DownloadUpdateTask::FileSourceList()
+						   << DownloadUpdateTask::FileSource("http",
+															 "http://host/path/fileTwo-2"),
+					   "38f94f54fa3eb72b0ea836538c10b043"})
+			<< (DownloadUpdateTask::UpdateOperationList()
+				<< DownloadUpdateTask::UpdateOperation::DeleteOp("tests/data/fileThree")
+				<< DownloadUpdateTask::UpdateOperation::CopyOp(
+					   PathCombine(downloader->updateFilesDir(),
+								   QString("tests/data/fileOne").replace("/", "_")),
+					   "tests/data/fileOne", 493));
+	}
+	void test_processFileLists()
+	{
+		QFETCH(DownloadUpdateTask *, downloader);
+		QFETCH(DownloadUpdateTask::VersionFileList, currentVersion);
+		QFETCH(DownloadUpdateTask::VersionFileList, newVersion);
+		QFETCH(DownloadUpdateTask::UpdateOperationList, expectedOperations);
+
+		DownloadUpdateTask::UpdateOperationList operations;
+
+		downloader->processFileLists(new NetJob("Dummy"), currentVersion, newVersion,
+									 operations);
+		qDebug() << (operations == expectedOperations);
+		qDebug() << operations;
+		qDebug() << expectedOperations;
+		QCOMPARE(operations, expectedOperations);
+	}
+
+	void test_masterTest()
+	{
+		QLOG_INFO() << "#####################";
+		MMC->m_version.build = 1;
+		MMC->m_version.channel = "develop";
+		auto channels =
+			QUrl::fromLocalFile(QDir::current().absoluteFilePath("tests/data/channels.json"));
+		auto root = QUrl::fromLocalFile(QDir::current().absoluteFilePath("tests/data/"));
+		QLOG_DEBUG() << "channels: " << channels;
+		QLOG_DEBUG() << "root: " << root;
+		MMC->updateChecker()->setChannelListUrl(channels.toString());
+		MMC->updateChecker()->setCurrentChannel("develop");
+
+		DownloadUpdateTask task(root.toString(), 2);
+
+		QSignalSpy succeededSpy(&task, SIGNAL(succeeded()));
+
+		task.start();
+
+		QVERIFY(succeededSpy.wait());
+	}
+
+	void test_OSXPathFixup()
+	{
+		QString path, pathOrig;
+		bool result;
+		// Proper OSX path
+		pathOrig = path = "MultiMC.app/Foo/Bar/Baz";
+		qDebug() << "Proper OSX path: " << path;
+		result = DownloadUpdateTask::fixPathForOSX(path);
+		QCOMPARE(path, QString("../../Foo/Bar/Baz"));
+		QCOMPARE(result, true);
+
+		// Bad OSX path
+		pathOrig = path = "translations/klingon.lol";
+		qDebug() << "Bad OSX path: " << path;
+		result = DownloadUpdateTask::fixPathForOSX(path);
+		QCOMPARE(path, pathOrig);
+		QCOMPARE(result, false);
+	}
+};
+
+QTEST_GUILESS_MAIN_MULTIMC(DownloadUpdateTaskTest)
+
+#include "tst_DownloadUpdateTask.moc"
diff --git a/tests/tst_UpdateChecker.cpp b/tests/tst_UpdateChecker.cpp
new file mode 100644
index 00000000..162d0009
--- /dev/null
+++ b/tests/tst_UpdateChecker.cpp
@@ -0,0 +1,163 @@
+#include <QTest>
+#include <QSignalSpy>
+
+#include "TestUtil.h"
+#include "logic/updater/UpdateChecker.h"
+
+Q_DECLARE_METATYPE(UpdateChecker::ChannelListEntry)
+
+bool operator==(const UpdateChecker::ChannelListEntry &e1, const UpdateChecker::ChannelListEntry &e2)
+{
+	return e1.id == e2.id &&
+			e1.name == e2.name &&
+			e1.description == e2.description &&
+			e1.url == e2.url;
+}
+
+QDebug operator<<(QDebug dbg, const UpdateChecker::ChannelListEntry &c)
+{
+	dbg.nospace() << "ChannelListEntry(id=" << c.id << " name=" << c.name << " description=" << c.description << " url=" << c.url << ")";
+	return dbg.maybeSpace();
+}
+
+class UpdateCheckerTest : public QObject
+{
+	Q_OBJECT
+private
+slots:
+	void initTestCase()
+	{
+
+	}
+	void cleanupTestCase()
+	{
+
+	}
+
+	static QString findTestDataUrl(const char *file)
+	{
+		return QUrl::fromLocalFile(QFINDTESTDATA(file)).toString();
+	}
+	void tst_ChannelListParsing_data()
+	{
+		QTest::addColumn<QString>("channel");
+		QTest::addColumn<QString>("channelUrl");
+		QTest::addColumn<bool>("hasChannels");
+		QTest::addColumn<bool>("valid");
+		QTest::addColumn<QList<UpdateChecker::ChannelListEntry> >("result");
+
+		QTest::newRow("garbage")
+				<< QString()
+				<< findTestDataUrl("tests/data/garbageChannels.json")
+				<< false
+				<< false
+				<< QList<UpdateChecker::ChannelListEntry>();
+		QTest::newRow("errors")
+				<< QString()
+				<< findTestDataUrl("tests/data/errorChannels.json")
+				<< false
+				<< true
+				<< QList<UpdateChecker::ChannelListEntry>();
+		QTest::newRow("no channels")
+				<< QString()
+				<< findTestDataUrl("tests/data/noChannels.json")
+				<< false
+				<< true
+				<< QList<UpdateChecker::ChannelListEntry>();
+		QTest::newRow("one channel")
+				<< QString("develop")
+				<< findTestDataUrl("tests/data/oneChannel.json")
+				<< true
+				<< true
+				<< (QList<UpdateChecker::ChannelListEntry>() << UpdateChecker::ChannelListEntry{"develop", "Develop", "The channel called \"develop\"", "http://example.org/stuff"});
+		QTest::newRow("several channels")
+				<< QString("develop")
+				<< findTestDataUrl("tests/data/channels.json")
+				<< true
+				<< true
+				<< (QList<UpdateChecker::ChannelListEntry>()
+					<< UpdateChecker::ChannelListEntry{"develop", "Develop", "The channel called \"develop\"", "$PWD/tests/data/"}
+					<< UpdateChecker::ChannelListEntry{"stable", "Stable", "It's stable at least", "ftp://username@host/path/to/stuff"}
+					<< UpdateChecker::ChannelListEntry{"42", "The Channel", "This is the channel that is going to answer all of your questions", "https://dent.me/tea"});
+	}
+	void tst_ChannelListParsing()
+	{
+		QFETCH(QString, channel);
+		QFETCH(QString, channelUrl);
+		QFETCH(bool, hasChannels);
+		QFETCH(bool, valid);
+		QFETCH(QList<UpdateChecker::ChannelListEntry>, result);
+
+		UpdateChecker checker;
+
+		QSignalSpy channelListLoadedSpy(&checker, SIGNAL(channelListLoaded()));
+		QVERIFY(channelListLoadedSpy.isValid());
+
+		checker.setCurrentChannel(channel);
+		checker.setChannelListUrl(channelUrl);
+
+		checker.updateChanList();
+
+		if (valid)
+		{
+			QVERIFY(channelListLoadedSpy.wait());
+			QCOMPARE(channelListLoadedSpy.size(), 1);
+		}
+		else
+		{
+			channelListLoadedSpy.wait();
+			QCOMPARE(channelListLoadedSpy.size(), 0);
+		}
+
+		QCOMPARE(checker.hasChannels(), hasChannels);
+		QCOMPARE(checker.getChannelList(), result);
+	}
+
+	void tst_UpdateChecking_data()
+	{
+		QTest::addColumn<QString>("channel");
+		QTest::addColumn<QString>("channelUrl");
+		QTest::addColumn<int>("currentBuild");
+		QTest::addColumn<QList<QVariant> >("result");
+
+		QTest::newRow("valid channel")
+				<< "develop" << findTestDataUrl("tests/data/channels.json")
+				<< 2
+				<< (QList<QVariant>() << QString() << "1.0.3" << 3);
+	}
+
+	void tst_UpdateChecking()
+	{
+		QFETCH(QString, channel);
+		QFETCH(QString, channelUrl);
+		QFETCH(int, currentBuild);
+		QFETCH(QList<QVariant>, result);
+
+		MMC->m_version.build = currentBuild;
+
+		UpdateChecker checker;
+		checker.setCurrentChannel(channel);
+		checker.setChannelListUrl(channelUrl);
+
+		QSignalSpy updateAvailableSpy(&checker, SIGNAL(updateAvailable(QString,QString,int)));
+		QVERIFY(updateAvailableSpy.isValid());
+		QSignalSpy channelListLoadedSpy(&checker, SIGNAL(channelListLoaded()));
+		QVERIFY(channelListLoadedSpy.isValid());
+
+		checker.updateChanList();
+		QVERIFY(channelListLoadedSpy.wait());
+
+		checker.m_channels[0].url = QUrl::fromLocalFile(QDir::current().absoluteFilePath("tests/data/")).toString();
+
+		checker.checkForUpdate(false);
+
+		QVERIFY(updateAvailableSpy.wait());
+		QList<QVariant> res = result;
+		res[0] = checker.m_channels[0].url;
+		QCOMPARE(updateAvailableSpy.first(), res);
+	}
+};
+
+QTEST_GUILESS_MAIN_MULTIMC(UpdateCheckerTest)
+
+#include "tst_UpdateChecker.moc"
diff --git a/tests/tst_pathutils.cpp b/tests/tst_pathutils.cpp
index 1e4a83bf..a1310d00 100644
--- a/tests/tst_pathutils.cpp
+++ b/tests/tst_pathutils.cpp
@@ -23,13 +23,12 @@ slots:
 		QTest::addColumn<QString>("path1");
 		QTest::addColumn<QString>("path2");
 
-#if defined(Q_OS_UNIX)
-		QTest::newRow("unix 1") << "/abc/def/ghi/jkl" << "/abc/def" << "ghi/jkl";
-		QTest::newRow("unix 2") << "/abc/def/ghi/jkl" << "/abc/def/" << "ghi/jkl";
-#elif defined(Q_OS_WIN)
-		QTest::newRow("win, from C:") << "C:\\abc" << "C:" << "abc\\def";
-		QTest::newRow("win 1") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc\\def" << "ghi\\jkl";
-		QTest::newRow("win 2") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc\\def\\" << "ghi\\jkl";
+		QTest::newRow("qt 1") << "/abc/def/ghi/jkl" << "/abc/def" << "ghi/jkl";
+		QTest::newRow("qt 2") << "/abc/def/ghi/jkl" << "/abc/def/" << "ghi/jkl";
+#if defined(Q_OS_WIN)
+		QTest::newRow("win native, from C:") << "C:/abc" << "C:" << "abc";
+		QTest::newRow("win native 1") << "C:/abc/def/ghi/jkl" << "C:\\abc\\def" << "ghi\\jkl";
+		QTest::newRow("win native 2") << "C:/abc/def/ghi/jkl" << "C:\\abc\\def\\" << "ghi\\jkl";
 #endif
 	}
 	void test_PathCombine1()
@@ -48,16 +47,15 @@ slots:
 		QTest::addColumn<QString>("path2");
 		QTest::addColumn<QString>("path3");
 
-#if defined(Q_OS_UNIX)
-		QTest::newRow("unix 1") << "/abc/def/ghi/jkl" << "/abc" << "def" << "ghi/jkl";
-		QTest::newRow("unix 2") << "/abc/def/ghi/jkl" << "/abc/" << "def" << "ghi/jkl";
-		QTest::newRow("unix 3") << "/abc/def/ghi/jkl" << "/abc" << "def/" << "ghi/jkl";
-		QTest::newRow("unix 4") << "/abc/def/ghi/jkl" << "/abc/" << "def/" << "ghi/jkl";
-#elif defined(Q_OS_WIN)
-		QTest::newRow("win 1") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc" << "def" << "ghi\\jkl";
-		QTest::newRow("win 2") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc\\" << "def" << "ghi\\jkl";
-		QTest::newRow("win 3") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc" << "def\\" << "ghi\\jkl";
-		QTest::newRow("win 4") << "C:\\abc\\def\\ghi\\jkl" << "C:\\abc\\" << "def" << "ghi\\jkl";
+		QTest::newRow("qt 1") << "/abc/def/ghi/jkl" << "/abc" << "def" << "ghi/jkl";
+		QTest::newRow("qt 2") << "/abc/def/ghi/jkl" << "/abc/" << "def" << "ghi/jkl";
+		QTest::newRow("qt 3") << "/abc/def/ghi/jkl" << "/abc" << "def/" << "ghi/jkl";
+		QTest::newRow("qt 4") << "/abc/def/ghi/jkl" << "/abc/" << "def/" << "ghi/jkl";
+#if defined(Q_OS_WIN)
+		QTest::newRow("win 1") << "C:/abc/def/ghi/jkl" << "C:\\abc" << "def" << "ghi\\jkl";
+		QTest::newRow("win 2") << "C:/abc/def/ghi/jkl" << "C:\\abc\\" << "def" << "ghi\\jkl";
+		QTest::newRow("win 3") << "C:/abc/def/ghi/jkl" << "C:\\abc" << "def\\" << "ghi\\jkl";
+		QTest::newRow("win 4") << "C:/abc/def/ghi/jkl" << "C:\\abc\\" << "def" << "ghi\\jkl";
 #endif
 	}
 	void test_PathCombine2()
diff --git a/tests/tst_userutils.cpp b/tests/tst_userutils.cpp
index 62bee985..3bc980c0 100644
--- a/tests/tst_userutils.cpp
+++ b/tests/tst_userutils.cpp
@@ -23,6 +23,9 @@ slots:
 		QCOMPARE(Util::getDesktopDir(), QStandardPaths::writableLocation(QStandardPaths::DesktopLocation));
 	}
 
+// this is only valid on linux
+// FIXME: implement on windows, OSX, then test.
+#if defined(Q_OS_LINUX)
 	void test_createShortcut_data()
 	{
 		QTest::addColumn<QString>("location");
@@ -40,7 +43,7 @@ slots:
 						 #if defined(Q_OS_LINUX)
 							  << MULTIMC_GET_TEST_FILE("data/tst_userutils-test_createShortcut-unix")
 						 #elif defined(Q_OS_WIN)
-							  << QString()
+							  << QByteArray()
 						 #endif
 								 ;
 	}
@@ -59,8 +62,10 @@ slots:
 
 		//QDir().remove(location);
 	}
+#endif
 };
 
+
 QTEST_GUILESS_MAIN_MULTIMC(UserUtilsTest)
 
 #include "tst_userutils.moc"